What is the name of our star?

READ the information about one planet from the Solar System: Planet where 7 billion people live. There are lots of animals and plants, and an atmosphere protects them from meteoroids. The name of the planet is:

________ is the planet before Neptune, and _______ is the planet after Mars.

What do comets do?

The planets move around the Sun. This is called revolution / rotation.

Shooting stars are ________.

HOW do black holes are created?

Astronomy is a science that studies:

Put in order SMALLEST TO LARGEST: Universe, Planets, Galaxy, Solar System

The word solar means the ------.

Which planet is referred to as Earth's Twin? Why?

What are comets made of?