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Plant  Movements
 
02:16
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Control and Coordination Topic: Plant Movements Movement in plants may or may not be very pronounced. Those lower plant which are aquatic and are provided with cilia have as rapid and efficient locomotion as that of animals of a similar category. In fixed rooted plants, the characteristic mode of nutrition has done away with the necessity of rapid locomotion. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 65258 CBSE
Nutrition In Amoeba
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Life process nutrition Topic: Nutrition In Amoeba Nutrition in amoeba is holozoic. Thus, solid food particles are ingested which are then acted upon by enzymes and digested. It is an omnivore, feeding on both plants and animals. Its diet includes bacteria, microscopic plants like the diatoms, minute algae, microscopic animals like other protozoa, nematodes and even dead organic matter. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 67962 CBSE
The Gold Leaf Electroscope
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 08 Subject: Physics Lesson : Current Electricity Topic: The Gold Leaf Electroscope The device is used for detecting electric charge and can also identify its polarity, if compared with a known charge. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 95012 CBSE
Causes of Ozone Depletion
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject : Biology Lesson :Our environment Topic: Causes of Ozone Depletion Ozone layer depletion, is simply the wearing out (reduction) of the amount of ozone in the stratosphere. Unlike pollution, which has many types and causes, Ozone depletion has been pinned down to one major human activity. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 51974 CBSE
Magnetic Field in a Solenoid
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: SCIENCE Lesson : Electric Current and its Effects Topic: Magnetic Field in a Solenoid A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 186330 CBSE
Importance of Fungi
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 08 Subject: Biology Lesson : Microorganisms : Friend and FOE Topic: IMPORTANCE OF FUNGI Fungi have a great diversity of impacts on plants: They cause DISEASE (Potato blight, Rusts, Smuts, Armillaria), they feed many trees through MYCORRHIZAL associations, they CYCLE nutrients by breaking down leaf litter and wood, they are necessary for ORCHID seed to germinate. They are also of major economic importance to humans: they cure DISEASE (Antibiotics), they produce useful enzymes (Yeasts, Cheese production), and they can be POISONOUS or EDIBLE. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 9235 CBSE
Brownian Movement
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Chemistry Lesson : Structure of Matter Topic: Brownian Movement The effect has been observed in all types of colloidal suspensions (see colloid)—solid-in-liquid, liquid-in-liquid, gas-in-liquid, solid-in-gas, and liquid-in-gas. It is named for the botanist Robert Brown who observed (1827) the movement of plant spores floating in water Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 31634 CBSE
WATER TREATMENT
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: SCIENCE Lesson :Water: A Precious Resource Topic: WATER TREATMENT Waste water treatment refers to the process of removing contaminants from waste water. It includes physical, chemical and biological processes to remove physical, chemical and biological contaminants. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 67392 CBSE
Electrical Resistance
 
03:11
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Physics Lesson :Electricity, Heating and chemical effect of current Topic: Electrical Resistance Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. Theresistance is measured in units of ohms (Ω). If we make an analogy to water flow in pipes, the resistance is bigger when the pipe is thinner, so the water flow is decreased. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 19478 CBSE
CLASS  AVES
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : DIVERSITY IN LIVING ORGANISMS Topic: CLASS AVES These are warm-blooded animals and have a four-chambered heart. They lay eggs. There is an outside covering of feathers, and two forelimbs are modified for flight. They breathe through lungs. All birds fall in this category. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 18218 CBSE
Plastids
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : FUNDAMENTAL UNITS OF LIFE Topic: Plastids Plastids are found in all plant cells and in euglenoides. These are easily observed under the microscope as they are large. They bear some specific pigments, thus imparting specific colours to the plants. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 29912 CBSE
Magnetic Field Due to a Current in a Circular Coil
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Physics Lesson :Magnetic Effect of Electric Current Topic: Magnetic Field Due to a Current in a Circular Coil A wire carrying a current generates a magnetic field B whose magnitude and direction at each point in space depend on the length and shape of the wire, the current flowing through the wire, and the location of the point at which the field is determined. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 161229 CBSE
Structure and Working of Neurons
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Control and Coordination Topic: Structure and Working of Neurons Nerve cells have four defined regions - the cell body, the dendrites, the axon, and the terminal. The whole cell is surrounded by a wall the cell membrane. This is a specialized construction, which serves to protect the interior of the cell, but also to maintain a selective transport of molecules and other factors in and out of the cell. In the cell membrane there are also various components incorporated, which the cells need to communicate with the environment. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 111657 CBSE
SLOW SAND FILTER
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 6 Subject : Chemistry Lesson : TECHNOLOGY IN EVERYDAY LIFE Topic: SLOW SAND FILTER Slow sand filtration is a type of centralised or semi-centralised water purification system. A well-designed and properly maintained slow sand filter ( SSF ) effectively removes turbidity and pathogenic organisms through various biological, physical and chemical processes in a single treatment step. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 60677 CBSE
Public Address System
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 8 Subject : Physics Lesson :Technology in every day life Topic: Public Address System Public Address System (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public, for example for announcements of movements at large and noisy air and rail terminals. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 23559 CBSE
The Flow of Energy in an Ecosystem
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject : Biology Lesson :Our environment Topic: The Flow of Energy in an Ecosystem A succession of organisms in an ecological community that are linked to each other through the transfer of energy and nutrients, beginning with an auto trophic organism such as a plant and continuing with each organism being consumed by one higher in the chain. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 59707 CBSE
Composition  of Urine
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Life Process Excretion Topic: COMPOSITION OF URINE Normal urine is a yellow fluid. It is usually slightly cidic with pH value 6. Its main components are Normal – urea, NaCl, KCl, creatinine, uric acid, phosphates, sulfates, traces of calcium, magnesium, and sometimes bicarbonate, urochrome and a trace of bilirubin. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 14934 CBSE
Thermal Expansion of Liquids
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 9 Subject :Physics Lesson : Heat Topic: Thermal Expansion of Liquids Volume expansion coefficient in the liquid state is 2.1, and 0.5 in the solid state exhibits a number of interesting characteristics where thermal expansion is concerned. If water is reduced from its boiling point—212°F (100°C) to 39.2°F (4°C) it will steadily contract, like any other substance responding to a drop in temperature. Normally, however, a substance continues to become denser as it turns from liquid to solid; but this does not occur with water. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 26830 CBSE
Socio cultural environment
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 6 Subject : Science Lesson : Environment and its Components Topic: Socio-cultural environment Cultural environments consist of the influence of religious, family, educational, and social systems within the marketing system. Marketers who intend to market products overseas must be sensitive to foreign cultures. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 13257 CBSE
Rectilinear Propagation of Light
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Physics Lesson : Light Topic: Rectilinear Propagation of Light Rectilinear Propagation of Light is the tendency of light to only travel in straight Lines. This means that if light "criss-crosses" between each other whilst going through a small hole, and view image upside down, as the light goes straight up from down, and down from up. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 10943 CBSE
Working of Electric Bell
 
02:40
Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: SCIENCE Lesson : Electric Current and its Effects Topic: Working of Electric Bell An electric bell consists of an iron core, on which is wound a wire as a coil. One end of the coil is connected to one terminal of a battery, and the other end to a steel rod that acts like a spring for the hammer touching the screw contact. The other terminal of the battery is connected to the screw contact with a switch in the middle. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 63418 CBSE
TYPES OF ASEXUAL REPRODUCTION
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Biology Lesson : Reproduction in Plants and Animals Topic: TYPES OF ASEXUAL REPRODUCTION Asexual reproduction involves the production of a new organism by a single parent. It occurs when there is plenty of food available and conditions are suitable for growth. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 98581 CBSE
Artificial Vegetative Propagation
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject : Biology Lesson :Reproduction Topic: Artificial Vegetative Propagation Vegetative propagation or asexual propagation is the method of reproducing plants with the use of organs other than the seed and spore. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 43368 CBSE
Malnutrition
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Biology Lesson : Common Diseases Topic: Malnutrition Hazards Lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things, or being unable to use the food that one does eat. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 15069 CBSE
Sodium Hydroxide
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Chemistry Lesson :Acids bases and Salt Topic: Sodium Hydroxide A white, corrosive, solid compound that absorbs water and carbon dioxidefrom the atmosphere and forms lye when in solution. Sodium hydroxide istoxic and strongly alkaline and is used to make chemicals and soaps and torefine petroleum. Chemical formula: NaOH. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 16901 CBSE
Wind Energy
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 8 Subject : Physics Lesson :Source of energy Topic: Wind Energy The energy of wind converted into useful form (usually electric current) is called wind energy. Wind energy is a Renewable energy source. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 42954 CBSE
Ecnomic Importance of Algae
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 08 Subject: Biology Lesson : Microorganisms : Friend and FOE Topic: ECONOMIC IMPORTANCE OF ALGAE Algae are ubiquitous, practically occurring in every habitable environmental across the globe. Majority of algae are abundant in stagnant waters. They have also been reported in habitats like hot water springs, ice, damp soils, rocks crevices, tree trunks, old walls, garbage pits and waste bunks. Free floating assemblage of algae also constitute a huge group of algae which are known as phytoplankton. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 4701 CBSE
Blood Groups
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Life process transportation Topic: Blood Groups Any of various classes into which human blood can be divided according to immunological compatibility, based on the presence or absence of specific antigens on red blood cells. Also called blood type. Compare ABO system, Rh factor. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 32534 CBSE
Blood Clotting
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Life process transportation Topic: Blood Clotting Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type ofblood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the injury. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 22060 CBSE
Electro negativity
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Chemistry Lesson :Periodic table of elements Topic: Electro negativity Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 28261 CBSE
Electron Affinity
 
02:14
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Chemistry Lesson :Periodic table of elements Topic: Electron Affinity Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion. In other words, the neutral atom's likelihood of gaining an electron. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 24025 CBSE
SEPARATING IMMISCIBLE LIQUIDS
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 6 Subject:Chemistry Lesson : Seperation Of Substance Topic: SEPARATING IMMISCIBLE LIQUIDS Mixtures of liquids can be separated according to their properties. The technique used depends on whether the liquids dissolve in each other, and so are miscible, or if they are immiscible. Fractional distillation is a technique used toseparate liquids according to their boiling points Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 24500 CBSE
Reflex Actions
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Control and Coordination Topic: Reflex Action It is the spontaneous, involuntary and immediate response generated at the unconscious level stimulated through specific receptors. The sensory impulse is directly and automatically converted into a motor effect through CNS e.g., touching the lower limb of a decapitated frog with acid soaked cotton causes withdrawal of limb. Center of this reflex is the spinal cord. The reflex disappears, if the spinal cord is destroyed. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 166696 CBSE
Prevention of Corrosion
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 8 Subject :Chemistry Lesson : Metals and non metals Topic: Prevention of Corrosion A corrosion protection method is a technique used to minimize corrosion such as the application of anti-corrosion coating, cathodic protection or other methods that make metal resistant to corrosion. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 35211 CBSE
THE NITROGEN CYCLE
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : Natural Resources Topic: THE NITROGEN CYCLE In nitrogen cycle, nitrogen passes from its elemental form in the atmosphere into simple molecules in the soil and water, which get converted to more complex molecules in living beings and back again to the simple nitrogen molecule in the atmosphere. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 100595 CBSE
Charging By Conduction
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Physics Lesson : Current Electricity Topic: Charging By Conduction During charging by conduction, both objects acquire the same type of charge. If a negative object is used to charge a neutral object, then both objects become charged negatively. In order for the neutral sphere to become negative, it must gain electrons from the negatively charged rod. 3. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 36515 CBSE
CLASS MAMMALIA
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : DIVERSITY IN LIVING WORLD Topic: CLASS MAMMALIA The homeotherms include more than 4,000 specis adapted also for aquatic, arboreal and aerial life. Mammals are warm-blooded animals with four-chambered hearts. They have mammary glands for the production of milk to nourish their young. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 14795 CBSE
The Ruminants
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 7 Subject : Science Lesson : NUTRITION IN ANIMALS Topic: The Ruminants An animal such as a cow or a sheep that brings food back from itsstomach into its mouth to chew it (=break it into small pieces with itsteeth) a second time. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 83741 CBSE
External Fertilisation
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 08 Subject: Biology Lesson : Reproduction in animals Topic: EXTERNAL FERTILIZATION External fertilization is when the sperm and eggs are released outside of the body and meet outside of the body. External fertilization is limited essentially to animals living in aquatic environments. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 69654 CBSE
Epidermis and Cork Cells in Plants
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : Tissues in Plants and Animals Topic: Epidermis and Cork Cells in Plants The epidermis is usually made of a single layer of cells. The entire surface of a plant has this outer covering of epidermis. Cork cells are dead and do not have any intercellular spaces. The walls of these cells are heavily thickened by the deposition of suberin. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 19823 CBSE
Atmospheric Refraction Twinkling of Stars
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Physics Lesson :Refraction of light Topic: Atmospheric Refraction Twinkling of Stars Atmospheric refraction the apparent angular elevation of the heavenly bodies above their true places, caused by the refraction of the rays of light in their passage through the earth's atmosphere. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 123828 CBSE
Humidity
 
04:49
Useful for CBSE, ICSE, NCERT & International Students Grade : 7 Subject : Geography Lesson :Air Topic:Humidity Humidity is the amount of water vapor in the air. Too much or too little humidity can be dangerous. For example, high humidity combined with hot temperatures is a combination that can be a health risk, especially for the very young and the very old. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 145185 CBSE
Dispersion of Light
 
02:48
Useful for CBSE, ICSE, NCERT & International Students Grade : 8 Subject : Physics Lesson :Light Topic: Dispersion of Light These colors are often observed as light passes through a triangular prism. Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet. The separation of visible light into its different colors is known as dispersion. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 125952 CBSE
TRANSLATORY MOTION
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 6 Subject : Science Lesson : Motion and Measurement of Distances Topic: TRANSLATORY MOTION The motion in which all the particles of a body move through the same distance in the same time is called translatory motion. There are two types of translatory motions: rectilinear motion; curvilinear motion. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 54591 CBSE
Evidences Paleonthology
 
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Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : HEREDITY AND EVOLUTION Topic: EVIDENCE FROM PALEONTOLOGY Various fossil examples indicate the pattern of evolution of many animals and the related groups. Archaeopteryx and other related fossils give clear impression of birds having reptilian origin. Likewise, the fossil records of camel, elephant, horse and man are sufficient to suggest about their evolution.Fossils of dinosaurs show the process of their evolution; their rule on earth and then extinction in mesozoic era (golden age of reptiles). Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 4936 CBSE
Natural vegetative  Propagation
 
03:01
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject : Biology Lesson :Reproduction Topic: Natural vegetative Propagation Plant propagation is the process of increasing the number of plants of a particular species or cultivar. Propagation can be via sexual or asexual means. Over the years, horticulturalists have developed asexual propagation methods that use vegetative plant parts. This allows plants to be created in ways that nature cannot duplicate. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 65112 CBSE
Phylum Protozoa
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : DIVERSITY IN LIVING WORLD Topic: Phylum Protozoa This group includes many kinds of unicellular eukaryotic organisms. Some of these organisms use appendages, such as hair-like cilia or whip-like flagella for moving around. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 43375 CBSE
Economic Importance of Bacteria
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 08 Subject: Biology Lesson : Microorganisms : Friend and FOE Topic: ECONOMIC IMPORTANCE OF BACTERIA Bacteria are the oldest, structurally simplest, and the most abundant forms of life on earth. They are also the only organisms with prokaryotic cellular organization. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 22583 CBSE
Real and Virtual images
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: Physics Lesson : Light Topic: Real and Virtual images A virtual image is produced when rays of light reach our eyes that appear to come from a real object, but there is in fact no object at the apparent source of the light. The most common example is when light from an object strikes a simple plane mirror. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 124441 CBSE
CLASS REPTILIA
 
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Useful for CBSE, ICSE, NCERT & International Students Grade 09 Subject: Biology Lesson : DIVERSITY IN LIVING WORLD Topic: CLASS REPTILIA These animals are cold-blooded, have scales and breathe through lungs. While most of them have a three-chambered heart, crocodiles have four heart chambers. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 15317 CBSE