Science quiz - grade 3- Preliminary.

1.What is the primary goal of energy conservation?

• • Increase energy consumption

• • Reduce energy waste

• • Promote energy generation

2.What is the significance of energy-efficient appliances?

• • They consume more energy

• • They consume more energy

• • They help reduce energy consumption

3.Which of the followings are environment friendly practices?

• Using cloth-bags for shopping

• Walking to nearby school without using vehicles

• Avoiding unnecessary use of electricity

• All of these

4. What is the role of insulation in energy conservation within a home?

• To make the home look more appealing

• To maintain comfortable temperatures with less energy.

• To increase energy consumption.

Why is it important to fix air leaks in a home for energy conservation?

• Air leaks have no impact on energy consumption.

• Air leaks contribute to energy waste by allowing heat or cool air to escape.

• Fixing air leaks damages the environment.

6. Most of the energy used on earth today originally came from which of these sources

• The moon

• The sun

• Soil

7. A liquid fossil fuel that is found underground and is mostly used as energy fuel but can also be used to make chemicals and plastics . Identify the fuel.

• Petroleum

• Coal

• Natural Gas

8. The energy source that uses collectors to heat water in buildings 

• Wind Energy

• Natural Gas

• Solar Energy

9. Forests are called `Lungs of nature` why?

• Bring down the carbon dioxide level in the atmosphere 

• Bring down the oxygen level in the atmosphere

• Maintain the balance of carbon dioxide and oxygen in the atmosphere

• Increase the level of carbon dioxide 

10.Why is it important to recycle materials for energy conservation?

• Recycling increases energy consumption.

• Recycling has no impact on energy conservation.

• It reduces the need for producing new materials, conserving energy.

• Recycling harms the environment.