A ___________ is a vehicle used for travelling in space.
spacecraft
An ________ is the movement of a body in space around a larger body in space.
orbit
An __________ is a rocky mass that orbits the Sun.
asteroid
What is this an example of?
mirror image
the top layer of something that is next to the air
surface
Light always travels in ________ lines.
straight
when light bounces off a surface
reflection
A lump of dirt and ice which moves in a large orbit around the Sun is called a _________.
comet
Mirrors make good reflectors because they are ________ and ________.
smooth and shiny
Objects that reflect light is called a _________ _________ .
light reflector
In this picture, what is the ray called from the object to the eyes?
receiving ray
In this picture, what is the ray called from the light source to the object?
arriving ray
If an object makes its own light, it is a ________ ________.
light source
to take in a substance
absorb
a picture of an object that you can see on a screen or in a mirror
image
The ________ _______ is made up of stars, the Sun and planets.
the solar system