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WorksheetsScience quiz - grade 3- Preliminary.
Total questions: 20
Worksheet time: 18mins
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.
11.What are some things you can do to conserve energy and help protect our environment?
run the washing machine with 1 shirt
leave the refrigerator door open
turn off water, turn off lights, turn off TV
leave water on, leave TV on, run dishwasher with 1 plate
12.Which renewable energy source is considered a form of energy conservation?
r
Wind power
Coal
Natural gas
Nuclear energy
13.Which statement is not correct regarding the food chain?
Every component of food chains forms tropic level
All the chains formed by nutritional relations are used to understand energy flow
In Food chain, energy level increases from lower trophic level to higher trophic level
14.Which of the following has more kinetic energy?
15.An energy company wants to build a hydroelectric power plant. Which of these characteristics of an area is most important to the development of a hydroelectric power plant?
The area has a cool, rainy climate.
The area has a river that flows rapidly from nearby mountains through a valley
The area is located in a valley with very little wind and frequent heavy fog.
The Law of Conservation of Energy states:
Energy can created or destroyed but not transformed
Energy can't be created, destroyed or transformed
Energy cannot be created or destroyed, only transformed from one form to another.
Which of the following statement is correct
STATEMENT A - The energy that humans get from food originally comes from the Earth
STATEMENT B - Humans get their energy from food
A is true B is false
A is false B is true
Both A and B are true
Both A and B are false
What role do decomposers play in the energy conservation of an ecosystem?
They produce energy
They convert sunlight into energy
They recycle nutrients and release energy from dead organisms
The capacity to do work is called
Force
Energy
Machine
How can planting more trees help in saving energy?
Trees are good at telling stories.
Trees absorb carbon dioxide and provide shade, helping to cool our homes naturally.
Planting trees has no impact on energy conservation.
