Solar system review

Which planet is closest in size to Earth?

The Earth completes one ______________ every 365 days.

The Earth completes one ________ on its axis in about 24 hours.

The __________ includes the sun and all the objects that revolve around it.

Which planet is closest to the sun?

What is a huge collection of stars, gases, and dust clouds called?

There are ______ constellations.

Which planet is most well known for its rings?

Which is not a galaxy shape?

What is the smallest planet in the solar system?

What are the two other names for the Little Bear constellation?

Which one of these do scientists use in space?

How many stars does our solar sytem have?

What is the largest planet in our solar system?

______ stars are the hottest.

What revolves around the Earth?

The study of the universe is called _______.

A ________ is a glowing ball of burning gases.

Which planet is furthest from the sun?

The largest stars are called___________.