objects in the sky

Properties of earth materials Objects in the sky Changes in earth and sky..

An object is said to be at rest if it does not change its position with respect to its surroundings. Have you watched the night sky? You have observed that the position of stars and planets change while you remain stationary. In reality the earth is moving too. Thus, an ..

Motion and Rest - Imagine you are travelling in a moving train. Do you observe any change in your position with respect to your co-passengers? Is there any change of scene you view through the window? The change of scene indicates that the train is moving. That is, an object is said to be..

Constellations - Constellation is a group of stars visible within a particular region of the night sky. The stars that appear in the form of closed groups and form recognizable shapes and patterns are known as constellations. There are about 88 different constellations across the whole ..

Question: Kiran Prakash recently saw the following illustration in the 'Junior Science'. The magazine invited comments from its readers. Since he is interested in UFOs, he decided to write a letter to them expressing his views. Using ideas from the unit 'Mystery' as well as your own ideas..

Question 1 - Question: Kiran Prakash recently saw the following illustration in the 'Junior Science'. The magazine invited comments from its readers. Since he is interested in UFOs, he decided to write a letter to them expressing his views. Using ideas from the unit 'Mystery' as well as your own id..

Introduction - You have studied in the previous chapter about refraction of light by lenses and also about the nature, position and relative size of images formed by lenses. How can these ideas help us in the study of the human eye? The human eye uses light and enables us to see objects a..

. Scientists estimate that there are about 10 billion trillion stars in the universe. Stars are enormous objects. Even large stars look like tiny dots because they are so far away. The nearest star - other than the sun - is more than 40 million kilometers away. Stars differ greatly in col..

>At the time of sunrise and sunset, light from Sun has to pass maximum distance through Earth's atmosphere. As l r > l b red color is scattered least and can enter into our eyes. That is why sun looks red at the time of sunrise and sunset. Clouds are seen due to scattering of light from lower parts..

. The fickle nature of the mob is also beautifully revealed. The setting is in Caesar's house. Caesar says that there is great turmoil in the sky and on earth. Calpurnia who is Caesar's wife had cried out in her sleep, asking for help, on seeing him murdered. She enters and asks her husba..