Home
Search results “Determining polarity lab activity”
VSEPR Theory: Introduction
 
20:30
To see all my Chemistry videos, check out http://socratic.org/chemistry This is an introduction to the basics of VSEPR Theory. VSEPR theory is a set of rules for how to look at a Lewis structure and determine the three dimensional (3D) shape of a molecule. The shapes have to do with the location of bonds and lone electrons pairs. In this video, we'll look at the following shapes: linear, trigonal planar, bent, tetrahedral, and trigonal bipyramidal
Views: 1425664 Tyler DeWitt
Polar and Non-polar Molecules (The milk and food coloring experiment!)
 
07:31
This video is about Polar and Non-polar Molecules (The milk and food coloring experiment!)
Views: 782 Caylin Smith
Water Properties, Polar nonpolar Lab
 
11:17
Made with Explain Everything
Views: 657 Jon Lund
Glucose
 
09:38
Determining polarity for glucose (lab)
Views: 106 Barbara Fricks
Analysis of Unknown Solids
 
15:50
Identify five unknown white solids, all common household substances. This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - http://elearning.flinnsci.com ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Be sure to subscribe and check out more videos! Subscribe: https://www.youtube.com/channel/FlinnScientific/ Facebook: https://www.facebook.com/FlinnScientific/ Website: https://www.flinnsci.com/
Views: 6728 FlinnScientific
Positive or Negative? How to Find Electric Charge Polarity
 
02:30
Find out if something is positively or negatively charged using just a DIY electroscope. This determines the sign of the electrostatic charge on an electrostatically charged object. The electroscope is first inductively charged from the object being tested. Then a plastic coke bottle is used as an object with known polarity in order to do the test and is triboelectrically charged. The video showing how to make your own electroscope is: http://youtu.be/2PmWlPjV6n0 How inductive charging works video: http://youtu.be/-JsVZwc1dOo The Triboelectric effect video http://youtu.be/Fph08eKTVZM To follow me on Twitter: https://twitter.com/#!/RimStarz http://rimstar.org
Views: 92228 RimstarOrg
How to make Colorful Milk Polarity Experiment
 
01:29
It's time for another polarity experiment! This time, we will show you simple way to learn about the polarity of different liquids. All you need is a little bit of milk, food colors, dishwashing soap and a Cotton Swab. Kids will love this activity because of a cool effect and you can experiment with different liquids to get different effects. For complete explanation of science behind experiment, visit http://www.stemlittleexplorers.com/en/make-colorful-milk-polarity-experiment/ Visit us at http://www.stemlittleexplorers.com And follow us at: Facebook https://www.facebook.com/stemlittleexplorers/ Twitter https://twitter.com/Explorers_STEM Pinterest https://www.pinterest.com/STEM_Little_Explorers/ Authors: Vedran Leder & Iva Erceg Music: "Private Eye" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/
12 Lead ECG Explained, Animation
 
03:27
Understanding the standard 12-lead EKG - Basics of electrocardiography explained. This video and other related images/videos (in HD) are available for instant download licensing here: https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/cardiology-and-vascular-diseases ©Alila Medical Media. All rights reserved. Voice by: Sue Stern. Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. Electrical activities of the heart can be picked up on the skin via electrodes. An ECG machine records these activities and displays them graphically. The graphs show the heart’s OVERALL electrical potential, or voltage, as it changes over time during a cardiac cycle. The 12 leads of the ECG represent 12 electrical views of the heart from 12 different angles. The conventional 12-lead procedure involves attaching 10 electrodes to the body: one to each limb and six across the chest. There are 6 limb leads and 6 chest leads. The 6 limb leads look at the heart in a vertical plane and are obtained from three electrodes attached to the right arm, left arm, and left leg. The electrode on the right leg is an earth electrode. The measurement of a voltage requires 2 poles: negative and positive. The ECG machine uses the negative pole as zero reference. Thus, the position of the positive pole is the “point of view”, and the line connecting the 2 poles is the “line of sight”. Leads I, II, and III are BI-polar - they measure electrical potential between 2 of the 3 limb electrodes: Lead I represents the voltage between the right arm – negative pole - and the left arm – positive pole, and thus looks at the heart from the left. Lead II sees signal movements between the right arm – negative - and the left leg –positive - forming the INFERIOR LEFT view. Similarly, lead III measures electrical potential between the left arm – negative - and the left leg –positive, looking at the heart from an INFERIOR RIGHT angle. Leads aVR, aVL, and aVF, or “augmented limb leads”, are UNIpolar. They use ONE limb electrode as the positive pole, and take the average of inputs from the OTHER two as the zero reference. Hence, aVR looks at the UPPER RIGHT side of the heart; aVL looks at the UPPER LEFT side of the heart; and aVF looks at the INFERIOR wall of the heart. The chest leads, or precordial leads, view the heart in a HORIZONTAL plane. These are unipolar leads. The corresponding chest electrodes serve as the positive poles. The reference negative value is the same for all chest leads and is calculated as the average of inputs from the three limb electrodes. DE-polarization TOWARD a lead produces a POSITIVE deflection; DE-polarization AWAY from a lead gives a NEGATIVE deflection. The REVERSE is true for RE-polarization. Thus, leads that look at the heart from different angles may have waves pointing in different directions.
Views: 250105 Alila Medical Media
Identifying ionic and covalent bonds plus experiments for f
 
06:59
Video by Daniela Rangel, Jocelyn Diez and destiny Lumbreras, for mr Jackson's 3rd period chem class
Views: 25112 Cshm chemistry 35
Electronegativity Demonstration Device
 
08:24
Build a simple demonstration device to demonstrate the electron tug-of-war between atoms. This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - http://elearning.flinnsci.com ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Be sure to subscribe and check out more videos! Subscribe: https://www.youtube.com/channel/FlinnScientific/ Facebook: https://www.facebook.com/FlinnScientific/ Website: https://www.flinnsci.com/
Views: 2856 FlinnScientific
Bonding Models and Lewis Structures: Crash Course Chemistry #24
 
11:38
Models are great, except they're also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them... even when they're almost completely wrong. Plus, Lewis Structures! -- Table of Contents Models :06 Linus Pauling & The Bonding Model 9:16 Lewis Dot Structures 4:27 Ionic Bonds 5:30 Covalent Bonds 6:10 Double Bonds 7:17 Triple Bonds 8:14 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1341531 CrashCourse
Thin-Layer Chromatography (TLC)
 
10:17
Fundamentals of the TLC Method
Views: 478149 CapilanoUChemlab
Easy Magnet Polarity Determination
 
01:41
Easily find the polarity of an unmarked magnet without the use of a compass or magnetic polarity meter.
Views: 549 SciTubeHD
Science - Magnet - More about magnets - English
 
04:51
This short animated science video in English is meant for upper primary class children (age 11-13 years). This video explains that earth behaves like a magnet and why a freely suspended magnet always come to rest in North --South direction only. It also demonstrates that all magnets have both the North and South poles and a pole cannot be isolated.
Views: 47324 Bodhaguru
Chemistry Experiment 5.2 Polar and Nonpolar (Berean Builders)
 
05:19
Chemistry Experiment 5.2 Polar and Nonpolar Discovering Design with Chemistry by Dr. Jay L. Wile Fig Leaf Times Two by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200096 Artist: http://incompetech.com/
Views: 385 Teach at Home
Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22
 
09:46
Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The nature of the bond between atoms is related to the distance between them and, like people, it also depends on how positive or negative they are. Unlike with human relationships, we can analyze exactly what makes chemical relationships work, and that's what this episode is all about. If you are paying attention, you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law. -- Table of Contents Bonds Minimize Energy 01:38 Covalent Bonds 03:18 Ionic Bonds 05:37 Coulomb's Law 05:51 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1514468 CrashCourse
Polar and non polar substances | Solutions | Chemistry
 
02:43
A polar molecule is one in which the atoms are arranged such that one end of the molecule has a positive charge and the opposite end has a negative charge.In this video we see that polar substances only dissolve in polar solvents and non polar substances in non polar solvents. Potassium permanganate, a polar compound, is added to water, a polar solvent and to carbon tetrachloride, a non polar solvent. We see that it dissolves only in water. In a similar fashion, a non polar element iodine is added to the same two solvents. This time, we see, that iodine only dissolves in carbon tetrachloride.
Views: 43634 KClassScienceChannel
Polarity of Unknown Liquids
 
01:17
Part of NCSSM CORE collection: This video shows tests the polarity of unknown liquids. http://www.dlt.ncssm.edu Please attribute this work as being created by the North Carolina School of Science and Mathematics. This work is licensed under Creative Commons CC-BY http://creativecommons.org/licenses/by/3.0 Help us caption & translate this video! http://amara.org/v/GAgq/
POLARIMETER MOD.PL 1 ( OPTICS LAB)  IRAQ
 
04:13
IRAQ / Qadissiya University / College of Education / Physics Department / Optics Lab .. polarimeter can be used in the chemical industry, hospitals, colleges and universities and scientific research in situations, for measuring the organic substances with optical rotation. With the aid of the disk polarimeter, the specific gravity, purity, concentration, and content of thousands of active materials, such as sugar solution, turpentine oil and camphor, can be measured.
Views: 100051 physicslove1
How to identify the poles of a Magnet, North and south pole, compass
 
04:09
Buy High Accuracy Water proof compass in Amazon Link: http://amzn.to/2Dc2GCg
Views: 9798 TECH TRAVEL EAT
Water - Liquid Awesome: Crash Course Biology #2
 
11:17
Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction = 00:42 Molecular structure & hydrogen bonds = 01:38 Cohesion & surface tension = 02:46 Adhesion = 03:31 Hydrophilic substances = 04:42 Hydrophobic substances = 05:14 Henry Cavendish = 05:49 Ice Density = 07:45 Heat Capacity = 09:10 Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Citations: http://www.extension.umn.edu/distribution/youthdevelopment/components/0328-02.html http://www.uni.edu/~iowawet/H2OProperties.html http://www.hometrainingtools.com/properties-water-science-teaching-tip/a/1274/ http://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm http://www.robinsonlibrary.com/science/chemistry/biography/cavendish.htm http://chemistry.mtu.edu/~pcharles/SCIHISTORY/HenryCavendish.html http://www.nndb.com/people/030/000083778/ http://www.notablebiographies.com/Ca-Ch/Cavendish-Henry.html TAGS: water, hydrogen, oxygen, molecule, covalent bond, cohesion, adhesion, polarity, hydrogen bond, surface tension, capillary action, hydrophilic, hydrophobic, ionic bond, ion, universal solvent, henry cavendish, chemistry, specific gravity, density, heat capacity, evaporation, biology, crashcourse, crash course, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 2835854 CrashCourse
Optical rotation of sugars – chirality
 
04:02
Declan Fleming shows us how the optical properties of sugars can be revealed by the use of polarisers. See the article that accompanies this video in the January 2012 issue of Education in Chemistry magazine - http://www.rsc.org/Education/EiC/issues/2012January/chirality-in-sugars.asp This is part of the Education in Chemistry Exhibition Chemistry series: chemistry demonstrations to capture your students' imaginations: http://rsc.li/EiCExChem
Metre bridge-Resistance of a wire - MeitY OLabs
 
03:46
This video channel is developed by Amrita University's CREATE http://www.amrita.edu/create ▶ For more Information @ http://amrita.olabs.co.in/?sub=1&brch=6&sim=146&cnt=1 ▶ Amrita Online Lab Project website http://www.olabs.edu.in/ ▶ Subscribe @ https://www.youtube.com/user/amritacreate http://www.youtube.com/amritavlab ▶ Like us @ https://www.facebook.com/CREATEatAmrita Copyright © 2016 Amrita University Developed by Amrita University & CDAC Mumbai. Funded by MeitY (Ministry of Electronics & Information Technology) Metre bridge-Resistance of a wire :- The metre bridge is operates under Wheatstone’s principle. Here, four resistors P, Q, R, and S are connected to form the network ABCD. The terminals A and C are connected to a battery, and the terminals C and D are connected to a galvanometer through keys K1 and K2 respectively. In the balancing condition, there is no deflection on the galvanometer. Then, P/Q = R/S. This video explains how to find the resistance of a given wire using a metre bridge and hence determine the specific resistance of its materials.
Views: 407640 amritacreate
What Happens when Stuff Dissolves?
 
04:10
To see all my Chemistry videos, check out http://socratic.org/chemistry We'll look at what happens when you dissolve ionic and covalent compounds in water. Ionic compounds break apart into the ions that make them up, a process called dissociation, while covalent compounds only break into the molecules, not the individual atoms.
Views: 352757 Tyler DeWitt
Determination of Concentration of KMnO4 Solution Using Oxalic Acid - MeitY OLabs
 
09:36
This video channel is developed by Amrita University's CREATE http://www.amrita.edu/create ▶ For more Information @ http://amrita.olabs.co.in/?sub=73&brch=8&sim=115&cnt=1 ▶ Online Labs for School lab Experiments (Olabs) http://www.olabs.edu.in/ ▶ Learn more about Amrita University http://www.amrita.edu ▶ Subscribe @ http://www.youtube.com/amritacreate https://www.facebook.com/onlinelabs Copyright © 2013 Amrita University Developed by CDAC Mumbai & Amrita University under research grant from Department of IT, Government of India Determination of Concentration of KMnO4 Solution Using Oxalic Acid :- The oxidation and reduction reactions in aqueous solutions involve the transfer of electrons from one species to another. In the oxidation of a substance electron(s) is (are) transferred from the species and in reduction, electron(s) is (are) gained by the species. Oxidation and reduction reactions occur simultaneously. A reaction, which involves simultaneous oxidation and reduction, is called a redox reaction. The titrations involving redox reaction are called redox titrations. In Redox titrations involving potassium permanganate, it acts as a powerful oxidising agent. This video explains how to determine the strength of potassium permanganate solution by titrating it against a standard solution of Oxalic acid.
Views: 179302 amritacreate
Hertz Experiment on Electromagnetic Waves
 
04:10
Heinrich Hertz proved experimentally the existence of EM waves. We show a simplified version of his famous experiment.
Views: 170672 Ludic Science
Crockett Science AS Chemistry Activity 1 Finding Unknown Metal By Gas Collection
 
05:04
Its not Rocket Science its CROCKETT Science! My take on 'Finding Unknown Metal by Gas Collection' Enjoy
Views: 1326 Simon Crockett
How to test Diodes Using a Digital Multimeter
 
02:52
Electronics Projects: How to test Diodes Using a Digital Multimeter Topics Covered: 1. How to determine polarity of pn junction diode using digital multimeter. 2. Calculation of approximate forward voltage drop using digital multimeter. Contribute: http://www.nesoacademy.org/donate Website ► http://www.nesoacademy.org/ Facebook ► https://goo.gl/Nt0PmB Twitter ► https://twitter.com/nesoacademy Pinterest ► http://www.pinterest.com/nesoacademy/
Views: 48602 Neso Academy
Thin Layer Chromatography
 
02:01
NC State University Organic Chemistry Lab, Introduction to basic organic laboratory equipment and techniques. http://www.ncsu.edu/chemistry/
Static Electricity and Water
 
02:09
What happens when an electrically charged object is brought near a stream of water? This is an easy experiment you can do yourself that shows that water molecules are polar! [Closed Captioned]
Views: 465004 Jefferson Lab
Mapping of magnetic lines of force - Elementary Science
 
02:03
Mapping of magnetic lines of force To map lines of force around a bar magnet, fix a sheet of paper to a drawing board. Place a bar magnet on this sheet of paper at its centre. Adjust the drawing board and the north pole of the bar magnet along the sheet end by using a compass. Place a plotting compass near the bar magnet. With the pencil mark the direction of the north pole of the plotting compass say P1. Now move the plotting compass in such a way that the south pole of the plotting compass is in alignment with the P1 and again mark the second point P2 shown by the north pole of the plotting compass . Join P1 and P2 and mark the direction of the deflection. By repeating this action many more points may be obtained and the line joining all these points is called the line of force. To show the magnetic lines of force using iron fillings, take a card board, place a bar magnet at its centre. Now, sprinkle some iron filling on the cardboard. Tap the cardboard gently. All the iron fillings get aligned themselves in the direction of the magnetic field. The pattern in which these iron fillings form align is the direction of the magnetic line of force in that area.
Views: 84257 Elearnin
13. Polar covalent bonds; VSEPR theory
 
45:00
MIT 5.111 Principles of Chemical Science, Fall 2008 View the complete course: http://ocw.mit.edu/5-111F08 Instructor: Catherine Drennan, Elizabeth Vogel Taylor License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 51465 MIT OpenCourseWare
Liquid-liquid extraction (or separation)
 
03:43
Shows how to go about performing a liquid-liquid extraction using a separating funnel.
Views: 497387 David Read
Positive and Negative Charge
 
05:24
007 - Positive and Negative Charge In this video Paul Andersen explains how all objects contain positive and negative charge. Neutral objects contain an equal amount of positive and negative charges. Charged objects have more positive or negative charges. Like charges repel and unlike charges attract. Neutral objects can be polarized and cause attraction. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: AJ. A Blue Balloon on a Ribbon, July 18, 2008. Open clip Art Library image's page. http://commons.wikimedia.org/wiki/File:Blue_toy_balloon.svg. ———. A Red Balloon on a Ribbon, July 18, 2008. Open clip Art Library image's page. http://commons.wikimedia.org/wiki/File:Red_toy_balloon.svg. "Balloons and Static Electricity." PhET. Accessed May 5, 2014. https://phet.colorado.edu/en/simulation/balloons.
Views: 139014 Bozeman Science
112L Bond Polarity, Molecular Polarity, IMF's (#1)
 
23:00
Closed Captions can be turned on or off by clicking on the "CC" icon located in the bottom right corner of the video player.
Views: 2013 eku_chem_lab
phET Simulation on Molecule Polarity
 
05:20
Demonstration of the phET simulation on molecule polarity.
Views: 5130 Lynette McDee
Determining the Rate of Sea Floor Spreading
 
08:31
A demo of this learning activity.
Views: 5514 MrRogersESCI
Moisture Vs Water activity in 60 seconds
 
01:06
Water activity is the amount of unbound water present in the sample. In other words part of the water is normally chained to chemical groups in the sample and can not move freely to be used for example by bacteria which would cause food spoilage. Water activity is based on a scale of 0 to 1.0 with pure water having a value of 1.00. It is defined as the vapour pressure of water in a sample divided by the vapour pressure of pure water at the sample temperature. As the chemically bound water can not escape only the free water will exert vapour pressure and therefore this characteristic can be used to determine microbial spoilage, chemical stability, and physical stability. For example in the majority of food samples a water activity of 0.5 will mean the likelihood of microbial growth is very low. Moisture and water activity have a unique relationship for each product. This relationship is referred to as the moisture adsorption isotherm and it must be determined experimentally by measuring water content at several water activity values. Once the isotherm has been generated, it can be used to indirectly determine moisture content based on a water activity measurement or vice versa. Visit us at Better-engineers.com for more our our video magazine.
Views: 18741 BetterEngineers
Optical activity | Stereochemistry | Organic chemistry | Khan Academy
 
09:02
How optically active compounds rotate plane polarized light. Watch the next lesson: https://www.khanacademy.org/science/organic-chemistry/stereochemistry-topic/optical-activity/v/optical-activity-calculations-new?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/stereochemistry-topic/optical-activity/v/fischer-projection-practice?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Magnetic Field of a Wire
 
07:34
032 - Magnetic Field of a Wire In this video Paul Andersen explains how current moving through a wire will generate a magnetic field tangent to the wire. As the current increases the magnetic field will increase and as the radius from the wire increase the magnitude of the field will decrease. When the current in parallel wires travels in the same direction the wires will experience a force pulling them together. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: File:Electromagnetism.png, n.d. http://commons.wikimedia.org/wiki/File:Electromagnetism.png. "File:Hans Christian Ørsted Som Ung.jpg." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. http://en.wikipedia.org/wiki/File:Hans_Christian_%C3%98rsted_som_ung.jpg. "File:Magnet0873.png." Wikipedia, the Free Encyclopedia. Accessed May 18, 2014. http://en.wikipedia.org/wiki/File:Magnet0873.png. "File:Oersted Experiment.png." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. http://en.wikipedia.org/wiki/File:Oersted_experiment.png. Jfmelero. Right Hand Rule Is a Physics Principle Applied to Electric Current Passing through a Straight Wire, Resulting in a Magnetic Field. The Thumb Points in the Direction of the Conventional Current (from Positive to Negative), and the Fingers in the Direction of the Magnetic Field., February 29, 2008. Own work. http://commons.wikimedia.org/wiki/File:Manoderecha.svg. ———. The Magnetic Field around Two Wires Carrying Current in Opposite Directions Cause the Wires to Feel a Mutual Repulsion., [object HTMLTableCellElement]. Own work. http://commons.wikimedia.org/wiki/File:RepulsionTwoCurrents.svg. ———. The Magnetic Field around Two Wires Carrying Current in the Same Direction, Cause the Wires to Feel a Mutual Attraction., February 28, 2008. Own work. http://commons.wikimedia.org/wiki/File:AtractionTwoWires.svg.
Views: 238772 Bozeman Science
Intermolecular Forces Lab
 
09:27
Intermolecular Forces are forces that act between molecules rather than Interamolecular Forces which act within a molecule. These experiments show the differences in surface tension, evaporation rate, and solubility in vegetable oil in order to investigate the intermolecular forces of each fluid. Fluids used include water, isopropyl alcohol (70%), and glycerin. To follow @SpencerBPerry on Twitter go to https://twitter.com/SpencerBPerry
Views: 5535 Spencer Perry
Electrochemistry
 
08:44
034 - Electrochemistry In this video Paul Andersen explains how electrochemical reactions can separate the reduction and oxidation portions of a redox reactions to generate (or consume) electricity. The half reactions can be analyzed to determine the potential of either a galvanic (voltaic) or an electrolytic cell. The reduction takes place at the cathode and the oxidation takes place at the anode. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: and, Photo by. A Photograph of the Top of the Fulmer Falls Waterfall Located in the Childs Recreation Area in the Pocono Mountains., July 29, 2006. Self-photographed. http://commons.wikimedia.org/wiki/File:Fulmer_Falls_Top_2_3264px.jpg. "File:Copper Electroplating.svg." Wikipedia, the Free Encyclopedia. Accessed September 9, 2013. http://en.wikipedia.org/wiki/File:Copper_electroplating.svg. "File:ElectrochemCell.png." Wikipedia, the Free Encyclopedia. Accessed September 9, 2013. http://en.wikipedia.org/wiki/File:ElectrochemCell.png. "File:Galvanic Cell.svg." Wikipedia, the Free Encyclopedia. Accessed September 9, 2013. http://en.wikipedia.org/wiki/File:Galvanic_Cell.svg. "File:Lemon Battery With LED.svg." Wikipedia, the Free Encyclopedia. Accessed September 21, 2013. http://en.wikipedia.org/wiki/File:Lemon_Battery_With_LED.svg. "File:M Faraday Th Phillips Oil 1842.jpg." Wikipedia, the Free Encyclopedia. Accessed September 21, 2013. http://en.wikipedia.org/wiki/File:M_Faraday_Th_Phillips_oil_1842.jpg. "File:NiMH 2500mAh.jpg." Wikipedia, the Free Encyclopedia. Accessed September 21, 2013. http://en.wikipedia.org/wiki/File:NiMH_2500mAh.jpg. Lucasbosch. English: Low and High Form Beakers, October 19, 2011. Own work. http://commons.wikimedia.org/wiki/File:Beakers_en.svg.
Views: 443803 Bozeman Science
Chemical Bonds: Covalent vs. Ionic
 
08:57
Mr. Andersen shows you how to determine if a bond is nonpolar covalent, polar covalent, or ionc. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 585611 Bozeman Science
KVL KCL Ohm's Law Circuit Practice Problem
 
14:53
For success solving KVL KCL circuit problems, you can checkout the book I'm using for reference, Electricity Demystified - http://amzn.to/2ybreKU. Super fun electrical circuit problem that uses KVL, KCL, and Ohm's Law to solve for ALL the currents and voltages within a circuit! KVL is Kirchhoff's Voltage Law. KCL is Kirchhoff's Current Law. The general approach to these types of problems is to find several relationships between your knowns and unknowns within the circuit. Then, try to find a way to solve for one unknown at a time. **More practice circuit analysis videos** +Ohms Law: https://youtu.be/L0wBR3aYODw +KCL: https://youtu.be/6vo04662HJE +KVL: https://youtu.be/_a2ohPvMvLs My goal is to help my students flourish in all aspects of their lives. Here are some recommended tools to help you find success. **Success in Electronics or Engineering** + Introduction to Basic Electronics - http://52364cdc4do5cn2nazwmvgj9a7.hop.clickbank.net/?tid=YOUTUBE + Basic Circuit Analysis - http://amzn.to/2xxdPuL **Success in School** + How to Win at College - http://amzn.to/2yeQjGq + Get Better Grades by Studying Smarter! - http://874bf9z88-y64q27254i133i6q.hop.clickbank.net/?tid=YOUTUBE + How to be a Straight A Student - http://amzn.to/2zd7vui **Success In Life** + Goal Tracking System (web-based) - http://d6a218199dz69xd106ogz9s470.hop.clickbank.net/?tid=YOUTUBE + Innovation & Creative Thinker (skill employers love) - http://amzn.to/2zdQUq3 + Developing a Mindset for a Fulfilled Life - http://amzn.to/2xwVzqd The videos I post on YouTube are primarily for my own college students, so I usually do not have time to respond to YouTube comments. Sorry. But, if you have questions, you can checkout free EE Lessons.Courses and contact me through there: http://www.EEReviewVideos.com
Views: 461330 EE Review Videos
DNA Structure and Replication: Crash Course Biology #10
 
12:59
Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse References for this episode can be found in the Google document here: http://dft.ba/-2hCl 1:41 link to Biological Molecules http://www.youtube.com/watch?v=H8WJ2KENlK0 Table of Contents: 1) Nucleic Acids 1:30 2) DNA -A) Polymers 1:53 -B) Three Ingredients 2:12 -C) Base Pairs 3:45 -D) Base Sequences 4:13 3) Pop Quiz 5:07 4) RNA 5:36 -A) Three Differences from DNA 5:43 5) Biolography 6:16 6) Replication 8:49 -A) Helicase and Unzipping 9:22 -B) Leading Strand 9:38 -C) DNA Polymerase 10:08 -D) RNA Primase 10:24 -E) Lagging Strand 10:46 -F) Okazaki Fragments 11:07 -F) DNA Ligase 11:47 DNA, deoxyribonucleic acid, chromosome, nucleic acid, ribonucleic acid, RNA, polymer, nucleotide, double helix, nucleotide base, base pair, base sequence, friedrich miescher, rosalind franklin, replication, helicase, leading strand, lagging strand, rna primase, dna polymerase, okazaki fragment Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 5346384 CrashCourse
Chromatography Lab
 
01:06
To increase students' awareness of possible invisible pollutants in drinking water sources, students perform an exciting lab requiring them to think about how solutions and mixtures exist even in unsuspecting places such as ink. They use alcohol and chromatography paper to separate the components of black and colored marker ink. Students witness first-hand how components of a solution can be separated, even when those individual components are not visible in solution. View the full activity on TeachEngineering: https://www.teachengineering.org/activities/view/wst_environmental_lesson02_activity1 TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more! Music: Arriba Mami -Jingle Punks
Views: 2146 TeachEngineering
Kool-Aid Chromatography
 
06:13
For more information, visit http://www.bio-rad.com/yt/2/biotech-lab-textbook. This video demonstrates the separation of Kool-Aid drink mix pigments based on differences in polarity. Different percentages of alcohol are used in this chromatographic separation technique. This activity is included in the laboratory textbook Biotechnology: A Laboratory Skills Course. http://www.bio-rad.com/evportal/destination/product?catID=LKN6R715&WT.mc_id=yt-lse-ww-biotech-20121012-Q6pGleEzIGk We Are Bio-Rad Explorer. Our Mission: Bio-Rad’s Explorer program provides easy access to engaging hands-on science learning experiences that spark interest in science and its influence on the world. To do this we: Provide high quality, relevant, learning experiences based on real world science Empower educators with skills and confidence to deliver engaging, memorable lessons Connect with Bio-Rad Explorer Online: Website: http://www.bio-rad.com/en-us/education Twitter: https://twitter.com/BioRadEducation Pinterest: https://www.pinterest.com/bioradexplorer/ LinkedIn: https://www.linkedin.com/company/1613226/ Facebook: https://www.facebook.com/biorad/ Instagram: @BioRadLabs Snapchat: @BioRadLabs
Views: 19369 Bio-Rad Laboratories
Intermolecular Forces Magic Trick
 
05:10
Discover the magical properties of some common materials. This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - http://elearning.flinnsci.com ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Be sure to subscribe and check out more videos! Subscribe: https://www.youtube.com/channel/FlinnScientific/ Facebook: https://www.facebook.com/FlinnScientific/ Website: https://www.flinnsci.com/
Views: 20031 FlinnScientific
Comparing the solubility of water, ethanol and hexane
 
01:32
Using food colouring and water to test the solubilty of ethanol and hexane.
Views: 2308 Louise Ogilvie