Which of the following is not a fossil fuel?

• COAL

• CRUDE OIL

• ELECTRICITY

• NATURAL GAS

It is a thick, black substance called petroleum.

• NATURAL GAS

• CRUDE OIL

• WAX

 ________ is energy that comes from moving water.

• SOLAR ENERGY

• HYDROPOWER

• GEOTHERMAL ENERGY

____ is formed as the Sun heats Earth unevenly.

• HEAT

• WIND

• ICE

What is the act of saving, protecting, or using resource wisely?

• CONSTELLATION

• COLLISION

• CONSERVATION

To _______ means to use something more than once.

• REUSE

• REDUCE

• RECYCLE

WHAT ARE THE THREE R'S?

Burning ________ transforms the stored energy into thermal energy, gas, or fuel.

• Biofuel

• Biology

• Biomass

The energy that comes from the Sun is called _________.

Windmills called _________ change wind's kinetic energy into electric energy.

• windmills

• wind panel

• wind turbines