SCIENCE REVIEW GRADE 7

We get the energy that our bodies need from energy stored in:

• food.

• water.

• warm clothes.

• hot baths.

People who dig holes in the road need a lot of energy stored in their food because:

• they have long rest breaks.

• they always forget their sandwiches.

• they sometimes have to work in the rain.

• they transfer a lot of energy while they work.

How do we describe the way that energy is stored in batteries and food?

• kinetic energy

• chemical energy

• thermal energy

• potential energy

Which of these is not a way of transferring energy?

• light

• forces

• heating

• strain

Fossil fuels are formed from:

• water.

• electricity.

• dead plants and animals.

• rocks.

Which renewable resources are available at any time?

• hydroelectricity and geothermal

• solar and wind

• tidal and wave

• biofuels and solar energy

Which of these energy resources does not originally come from the Sun?

• wind energy

• solar power

• fossil fuels

• geothermal energy

Why do we need to burn fewer fossil fuels?

• Burning fossil fuels is contributing to climate change.

• Electricity is running out.

• To pay for new cars.

• Energy is cheap.

Which of these items is not needed to make a working circuit?

• connecting wires

• a switch

• a component such as a bulb

• a cell

One ammeter in this circuit is reading 3 A. What is the reading on the other ammeter?

• 1 A

• 2 A

• 3 A

• 4 A