Comets are masses of......., rock and sometimes metal.
a comet.
a planet.
What is this?
The solar system.
A star.
This is a:
star.
planet.
These are:
planets.
stars.
solar systems.
This is the sky during
the day.
the night.
This is the sky during the
night.
day.
Yes or No: You can see a lot of stars during the night.
Yes.
No.
Yes or No: This is a star.
Yes.
No.
