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6th Class (CBSE) Science: Fun With Magnets

Question: What is Magnet? Answer: Any material that has the property of attracting iron is called a magnet. The name magnet is derived from magnetite. Magnetite is a natural magnet. The force that the magnet exerts on iron is called magnetic force. A magnet can have any shape but is …

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6th Class (CBSE) Science: Electricity and Circuits

Question: What is an electric cell? Answer: An electric cell is a device which converts chemical energy into electric energy. It has two different metal plates: 1. one is the positive terminal 2. the other is the negative terminal These plates are kept inside a chemical called electrolyte, which stores …

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6th Class (CBSE) Science: Light, Shadows and Reflections

6th Class (CBSE) Science: Light, Shadows and Reflections

Question: We see the sun rising 81/4 minutes after it has actually risen. Why? Answer: The distance from the sun to the earth is 1485 lakh Kilometers. We can calculate that light travels from the sun to the earth in 81/4 minutes. That means we see the sun rising 81/4 minutes after …

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6th Class (CBSE) Science: Measurement and Motion

6th Class (CBSE) Science: Measurement and Motion

Question: What are the Standard units used in Measurements? Answer: In SI system, the standard units are: metre for length, kilogram for mass and seconds for time. Question: What are the standard units of mass, length and time in the CGS system, FPS system and MKS system? Answer: In CGS system, the standard units …

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8th Class (CBSE) Science: Coal And Petroleum

Question: From where do we find all the materials we use in our daily life? Answer: We get all these material from natural resource as well as from man-made resources. Question: How many kinds of natural resources are there on the basis of availability of material? Answer: On the basis of …

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8th Class (CBSE) Science: The Universe – Quiz

8th Class (CBSE) Science: The Universe - Quiz

What can you see in the sky during the day? You can only see the sun. Due to the brightness of the sun, other heavenly bodies cannot be seen. Look up at the sky on a cleat night. You can see the moon and thousand of star twinkling in the …

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8th Class (CBSE) Science: The Universe

8th Class (CBSE) Science: The Universe

Question: Name any three celestial bodies. Answer: Stars, Satellite, Planets. Question: Name the planets of the solar system which cannot be seen by naked eye? Answer: Neptune and Pluto. Question: Name the force which makes planets move around the sun. Answer: Gravitational force. Question: Which has higher density: Earth or sun? Answer: Earth. …

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8th Class (CBSE) Science: Force And Pressure – Quiz

8th Class (CBSE) Science: Force And Pressure - Quiz

Pushes and pulls are forces. The direction in which an object is pushed or pulled is called the direction of the objects. Pressure is defined as the force exerted per unit area. Smaller the area over which a force acts, The greater is the pressure, and, therefore, the greater is …

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8th Class (CBSE) Science: Force And Pressure

8th Class (CBSE) Science: Force And Pressure

Question: Define force. Answer: Any push or pull is called force. Question: When does a body move? Answer: A body moves when force is applied. Question: What is the first requirement to put force into play? Answer: Interaction between two objects. Question: Give any example of push. Answer: Pushing a …

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8th Class (CBSE) Science: Reaching The Age Of Adolescence – Quiz

8th Class (CBSE) Science: Reaching The Age Of Adolescence - Quiz

Hormones regulate many process in the body such as growth, development, behavior and reproduction. Each hormone is required in very small quantity and has its own specific function. your bodies has over 30 of these hormones.

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