Without sunlight, plants can't ____________.

There are many sources of heat in our homes. Which one is the BEST example of heat energy?

If the toy needs batteries to turn on, it uses _______________ energy.

Coal can be used as a source of ______________ when it burns.

Home appliances like the fridge, microwave and TV use ______________ energy.

When the light bounces off of a mirror, this is called _________________.

We can see the ball because _______________________.

Which one is NOT a source of energy?

We can't see clearly through the frosted glass because it allows only SOME light to pass through it.

Heat moves from cooler to warmer objects.

A shadow is formed when an object blocks light.

Your shadow is the shortest at noon.

The object reflects more light when it is _______________.

If the object is dark colored, it takes in more heat.