CBSE Class 10 Biology Chapter 7: Control and Coordination. What are the different Endocrine glands in human beings? Some of the endocrine glands are explained along with the hormones secreted by them and functions.
CBSE Class 10 Biology Chapter 7: Control and Coordination. In animals, such control and coordination are provided by nervous and muscular tissues. The nervous system in a human being is explained with the details.
CBSE Class 10 Biology Chapter 7: Control and Coordination. What happens in Reflex Actions? What happens somebody pricks with a needle. This is demonstrated with details.
CBSE Class 10 Biology Chapter 7: Control and Coordination. Is reflex action the only function of the spinal cord? Obviously not, since we know that we are thinking beings. The spinal cord is made up of nerves which supply information to think about. Thinking involves more complex mechanisms and neural connections. These are concentrated in the brain, which is the main coordinating centre of the body. The brain and spinal cord constitute the central nervous system.
CBSE Class 10 Biology Chapter 9: Heredity and Evolution. When we try to follow evolutionary relationships, how do we identify characteristics as common? These characteristics in different organisms would be similar because they are inherited from a common ancestor. Homologous and analogous characteristics are explained in this video.
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.