Glossary Science P4

The action of light bouncing off a surface

A vehicle for travelling in space

Scientific evidence that something is true

To find proof that something is true when doing a scientific investigation

A line that light travels in

A diagram to show how light travels

A rocky mass that orbits the sun

The movement of a body in space around a larger body in space

A lump of ice and dirt which moves in a large orbit around the sun

A vehicle for travelling in space