Solar System

To travel around a central point is to

The path an object takes around another object is called an

The different appearances of the moon from Earth

The imaginary line that an object spins around

The dark area formed when an object blocks the light

An object in space that produces its own energy, including light and heat is a

All the living things on Earth and their interactions in the places they live is the

The Earth takes 1 year to revolve around the sun.

How long does it take the Earth to complete one revolution

Molten means melted rock

All of the water on Earth whether solid, liquid or gas includes oceans, lakes, ice caps

The Earth rotates around its axis

The largest star in our solar system is the

A flow of a gas or a solid is

All of the solid parts on Earth such as soils, sediments and rocks

The moon changes shape every night in the sky.

Which is an example of a system?

The up and down movement of water at the surface is a

A force of attraction, or pull, between any two objects is

All of the air or mixture of gases that surround Earth