The Universe
Revolution
Rotation
Galaxy
Axis
100

The name of our galaxy?

What is the Milky Way?

100

What is revolution in terms of Earth?

What is the movement of Earth around the Sun?

100

What is Earth's rotation?

What is the spinning of Earth on its axis?

100

What is a galaxy?

 What is a collection of stars, gas, dust, and dark matter?

100

What is Earth's axis?

What is the imaginary line that Earth spins around?

200

What are the two types of stars found in the universe?

What are red giants and white dwarfs?

200

 How long does it take for Earth to complete one revolution around the Sun?

What is one year?

200

How long does it take for Earth to complete one rotation?

What is 24 hours?

200

Name one other type of galaxy besides the Milky Way.

What is the Andromeda Galaxy?

200

At what angle is Earth's axis tilted?

What is approximately 23.5 degrees?

300

What are stars primarily made of?

What is hydrogen and helium?

300

What effect does revolution have on seasons?

What causes the change of seasons?

300

What does rotation cause?

What is the day/night cycle?

300

How many galaxies are estimated to be in the universe?

What is over 100 billion?

300

 How does the tilt of the axis affect seasons?

What is it causes different parts of Earth to receive varying amounts of sunlight?

400

How do stars generate light?

What is through nuclear fusion?

400

What is the path Earth takes during its revolution called?

What is an orbit?

400

What part of Earth experiences daylight when it is rotating?

 What is the side facing the Sun?

400

What is the center of a galaxy typically composed of?

What is a supermassive black hole?

400

What is the significance of the North Star about Earth's axis?

What is it is aligned with the North Pole?

500

 What is a black hole?

What is a region in space where gravity is so strong that nothing can escape it?

500

What is the difference between revolution and rotation?

What is revolution is around the Sun, while rotation is around its own axis?

500

How does rotation affect the apparent motion of the stars?

What is it makes the stars appear to move across the sky?

500

What is the shape of the Milky Way galaxy?

What is a spiral?

500

How does the axis of rotation differ from the axis of revolution?

What is the rotation axis is vertical, while the revolution axis is the path around the Sun?