Natural Resources and Energy Practice

What causes the turbine to spin?

• The heat energy of steam is changed into the energy of motion.

• The motion of steam is changed into electrical energy.

• The chemical energy in coal turns the water into steam.

• Energy from the sun is changed into chemical energy.

Which of the following materials is not a fuel?

• coal

• wood

• water

• natural gas

What can be added to the drawing to show the original source of the energy found in the fuel?

• rocks breaking down into minerals

• people mining the coal

• the motion of flowing water

• sunlight shining on Earth

What type of energy did the generator produce to turn the lights on?

• sound

• light

• electrical

• heat

In science class, Abby's group is creating a flow chart. The flow chart shows how a power plant can change chemical energy into electrical energy. Abby will write a word in the first box to show a source of chemical energy. Which word should she write?

• sun

• wind

• water

• coal

Think about what is happening to the wood. Which word best describes this action?

• electricity

• generator

• boiler

• combustion

The energy that does not run out as we use it

• Renewable energy

• Nonrenewable energy

True or False: Fuel is a material that releases energy as heat when it burns.

• True

• False

True or False: Combustion happens when you burn a fuel to produce electrical and sound energy.

• True

• False

True or False: A generator is a device that changes energy of motion into electrical energy.

• True

• False