Today's Rocket Words: Your 5 words and meanings to learn
shadow
A dark shape produced by an object coming between rays of light and a surface.
opposite
Being on the other or further side when seen from a certain viewpoint.
obstruct
To block a path which something is travelling along.
light ray
A line of light that is travelling in a given direction.
fluorescent
Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.