What type of energy does an object have when it is in motion?

What type of energy is produced when electrons are pushed from one atom to another?

What type of chemical reaction produces heat?

What type of energy travels in waves?

One example of exothermic reaction is...

A metal called uranium is needed to produce nuclear energy

Petroleum and coal are both liquid fossil fuels

Natural gas produces more carbon dioxide than coal or petroleum when it is burned

The Sun and the wind can be unreliable sources of energy

Geothermal energy is a type of biofuel

Which is a natural source of light?

What do we call light produced by plants and animals?

What artificial light sources were used before electricity became available in people's home?

What type of material produces a shadow?

What type of surface reflects light?

Which is the consequence of global warming?

Which is a toxic gas that contributes to acid rain?

Which energy source is finite?

Which has to be stored carefully to avoid environmental damage?