CBSE Class 10 Biology Chapter 9: Heredity and Evolution. What are fossils? Preserved traces of living organisms are called fossils. Some of these are explained with demonstrations.
CBSE Class 10 Physics Chapter 10: Light – Reflection and Refraction. How to find the approximate focal length of a concave mirror? One of the methods is demonstrated in this video with the help of a concave mirror and paper.
CBSE Class 10 Physics Chapter 10: Light – Reflection and Refraction. How to find the approximate focal length of a convex lens? One of the methods is demonstrated in this video with the help of a convex lens and paper.
CBSE Class 10 Physics Chapter 10: Light – Reflection and Refraction. How are the images formed by the concave mirror? How can we locate the image formed by a concave mirror for different positions of the object? Are the images real or virtual? Are they enlarged, diminished or have the same size? This is demonstrated with the help of an activity with the help of a screen and candle flame.
CBSE Class 10 Physics Chapter 10: Light – Reflection and Refraction. How does light travel through a glass slab? What are the laws of refraction? This is demonstrated and explained in this video.
CBSE Class 10 Physics Chapter 10: Light – Reflection and Refraction. How are the images formed by the convex lens? How can we locate the image formed by a convex lens for different positions of the object? Are the images real or virtual? Are they enlarged, diminished or have the same size? This is demonstrated with the help of an activity with the help of a screen and candle flame.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. The human eye is one of the most valuable and sensitive sense organs. It enables us to see the wonderful world and the colours around us. The human eye works like a camera. This is explained with detailed information.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. The ability of the eye lens to adjust its focal length is called accommodation. The detailed working of accommodation of human eye to see objects at different distances is explained.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. Myopia is also known as near-sightedness. A person with myopia can see nearby objects clearly but cannot see distant objects distinctly. Why does it happen and how to correct it. This is demonstrated and explained in this video.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. Hypermetropia is also known as far -sightedness. A person with hypermetropia can see distant objects clearly but cannot see nearby objects distinctly. Why does it happen and how to correct it. This is demonstrated and explained in this video.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. How would light get refracted through a transparent prism? This is explained with a demonstration.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. How would white light get refracted through a transparent prism? How would the colors of white light get split? This is explained in this video.
CBSE Class 10 Physics Chapter 11: Human Eye and the Colorful World. Have you seen the sky and the Sun at sunset or sunrise? Have you wondered as to why the Sun and the surrounding sky appear red? This is explained with an activity to understand the blue colour of the sky and the reddish appearance of the Sun at the sunrise or sunset.
CBSE Class 10 Physics Chapter 12: Electricity. What is the electric current? How does it flow in an electric circuit? and how is it measured. This is explained through a demonstration.
CBSE Class 10 Physics Chapter 12: Electricity. What is the electric potential difference? How is it set up in an electric circuit? How is it measured? This is explained in the video.
CBSE Class 10 Physics Chapter 12: Electricity. An electric circuit consists of various components like battery, resistor, rheostat, voltmeter etc. How are these represented in an electric circuit diagram? This is explained in the video.
CBSE Class 10 Physics Chapter 12: Electricity. What is Ohm’s law? How does the relationship between voltage and current is derived from the ohms law? This is demonstrated by an activity.
CBSE Class 10 Physics Chapter 12: Electricity. Certain components offer an easy path for the flow of electric current while the others resist the flow. This is demonstrated through an activity in the video.
CBSE Class 10 Physics Chapter 12: Electricity. What are the factors on which the resistance of a resistor depends upon? How does it depend on the length, diameter and material of the wire? This is verified with the help of an activity demonstrated in the video.
CBSE Class 10 Physics Chapter 12: Electricity. What happens to the value of current and voltage when a number of resistors are connected in series in a circuit? This is explained with a demonstrated in the video.