Extra Questions for Science Olympiad Class 7

1. Matter and Its Composition
- What is matter? Give examples.
- Define mass and volume. How are they measured?
- Differentiate between physical and chemical changes.
- Explain the concept of mixtures and give examples.
- What is the difference between a compound and a mixture?

2. Motion and Time
- Define motion. Give examples of different types of motion.
- Explain the concept of speed and velocity.
- Differentiate between uniform and non-uniform motion.
- Define acceleration and give examples.
- What is the difference between speed and velocity?

3. Heat and Temperature
- Define heat and temperature. How are they measured?
- Explain the concept of conduction, convection, and radiation.
- Differentiate between conductor and insulator.
- What are the effects of heat on matter?
- How does the temperature of a substance affect its state of matter?

4. Winds, Storms, and Cyclones
- Define wind and how it is formed.
- Explain the concept of air pressure and its effects.
- Differentiate between a cyclone and a tornado.
- What are the safety measures to be taken during a cyclone?
- How do winds help in the process of pollination and seed dispersal?

5. Electric Current and its Effects
- Define electric current and its unit of measurement.
- Explain the concept of conductors and insulators.
- Differentiate between series and parallel circuits.
- What are the effects of electric current?
- How can we increase or decrease the brightness of a bulb in a circuit?

6. Light
- Define light and its sources.
- Explain the concept of reflection and refraction.
- Differentiate between concave and convex mirrors.
- What is the difference between a transparent, translucent, and opaque object?
- How does the human eye work and perceive colors?

7. Water: A Precious Resource
- Why is water important for life on Earth?
- Explain the concept of the water cycle.
- Differentiate between surface water and groundwater.
- What are the causes and effects of water pollution?
- How can we conserve water in our daily lives?

8. Forests: Our Lifeline
- Why are forests important for the environment?
- Explain the concept of deforestation and its consequences.
- Differentiate between evergreen and deciduous forests.
- What are the different layers of a forest?
- How can we contribute to the conservation of forests?

9. Waste Water Management
- Define wastewater and its sources.
- Explain the process of wastewater treatment.
- Differentiate between sewage and industrial wastewater.
- What are the methods of wastewater disposal?
- How can we reduce water pollution caused by wastewater?

10. Natural Resources
- Define natural resources and give examples.
- Explain the concept of renewable and non-renewable resources.
- Differentiate between biodegradable and non-biodegradable resources.
- What are the consequences of over-exploitation of natural resources?
- How can we promote sustainable use of natural resources?

Remember, these questions are meant to test your understanding and knowledge of the subject. Make sure to study and revise the relevant topics thoroughly to excel in the Science Olympiad for Class 7.

Yaa, I also agree with u.....