Science Quiz for Grade 3

What is the main source of heat on Earth?

• sun

• moon

• fire

What do you call the object that allows heat to pass through easily?

• conductor

• insulator

• plastic

How do you describe an object that does not allow heat to pass through easily?

• conductor

• insulator

• metal

Which instrument is used to measure temperature?

• stopwatch

• thermometer

• ruler

Which statement is true about temperature?

• The higher the temperature, the colder it is.

• The lower the temperature, the hotter it is.

• The higher the temperature, the hotter it is.

What would happen if the Sun, the main source of heat on Earth, suddenly disappeared?

• Nothing would change because we have other sources of heat.

• It would become very hot, and the oceans would dry up.

• It would become very cold and dark, and plants would stop growing.

Which of the following generates electricity by using energy from wind?

• solar panel

• generator

• wind turbine

Which of the following generates electricity from using energy from sunlight?

• solar panel

• generator

• wind turbine

Which renewable energy source uses heat from inside the Earth?

• solar panel

• geothermal power

• dams

Camille is learning about a source of energy that uses the force of water to create electricity. Which of the following best describes this source of energy?

• solar panel

• geothermal power

• dams