Which one of these is the largest source of light on Earth?

A thermometer measures

If we add heat to chocolate, it will-

Which object below does not produce sound?

The image shows-

The image shows-

This image shows-

This image shows-

Which object below does NOT produce heat?

Which body part helps you to hear sound?

TRUE or FALSE:

A lightbulb is a source of sound.

TRUE or FALSE:

A candle is a source of heat and light.

What energy is the boy using to read?

What energy is produced by the stereo?

What energy is produced by fireworks?

Ice cream melts because of -

What energy is NOT produced by a hair dryer?

You can see through a window because it is-

This artwork lets some light through. It is-

You cannot see through the mug because it is-

The turkey cooks because of-

The ice cube melts because of-

You can hear a piano play because of-

All sound is created from-