Patterns of Earth and Sky Unit Review

Front

What is gravity?

Back

The pull between Earth and other objects, which acts without touching.

Front

What is a star?

Back

A huge object that gives off heat and light.

Front

Who studies stars, planets, and objects in the universe?

Back

An astronomer.

Front

How long does it take for Earth to orbit the sun once?

Back

One year.

Front

What do scientists consider when planning an investigation?

Back

What they will observe and record, what they will change, and what they will keep the same.

Front

What is the sun?

Back

The star at the center of our solar system that provides light and heat.

Front

What is the moon?

Back

A natural satellite that orbits Earth.

Front

What is an orbit?

Back

The path an object takes as it moves around another object in space.

Front

What is a planet?

Back

A large object that orbits a star and does not produce its own light.

Front

What is a solar system?

Back

A group of planets and other objects that orbit a star.