1. A force of attraction between any two objects is called __________.

• static electricity
• rotation
• gravity
• orbit

2. ______________ is the path one object takes around another object.

• An orbit
• rotation

3. Describe Earth’s Orbit. What is one pattern that occurs because of this phenomenon?

• A) The Earth orbits around the Moon. It takes 30 days to complete the orbit, and this makes the tides change each day.

• B) The Earth orbits around the Sun. It takes 365 days to complete the orbit, and this causes the seasons each year.

• C) The Earth orbits around the Sun. It takes 120 days to complete the orbit, and this causes the length of the day to change.

• D) The Earth orbits around the Sun. It takes 500 days to complete the orbit, and this causes the Moon to change shape.

4. A chunk of rock from space that travels through Earth's atmosphere is called a _____.

• meteoroid
• meteor
• asteroid
• comet

5. We do not feel Earth move because .

• we move with Earth as it rotates
• Earth moves very slowly

6. What force causes the rise and the fall of tides?

• static electricity
• rotation
• gravity
• orbit

7. Earth’s gravity pulls objects toward its _____.

• axis
• center
• orbit
• moon

8. If you threw a ball up on the Moon, it would go up 6 times higher than on Earth. Explain how this is possible.

• A) "The Moon has more air, which helps the ball travel higher than on Earth."

• B) "The Moon has less mass, so its force of gravity is weaker than Earth’s. With less gravity pulling it down, the ball can travel farther."

• C) "The Moon has a stronger force of gravity, but the ball is lighter, so it goes higher."

• D) "The Moon has a thicker atmosphere, which allows the ball to travel higher than on Earth."

9. Which would be the most likely outcome of a meteorite's encounter with Earth?

• The meteorite orbits around Earth.
• The meteorite flies past Earth.
• The meteorite hits Earth and makes a crater.
• The meteorite burns in Earth's atmosphere.

10. How does the tilt of Earth's axis affect the change of the seasons?

• A)The tilt of Earth's axis causes the Earth to rotate more quickly, which changes the seasons.

• B) As Earth rotates around the Sun, the tilt of Earth remains the same. This causes the angle of the Sun’s rays to change, leading to different seasons.

• C) The tilt of Earth's axis causes the Earth to move closer to the Sun during some parts of the year, making the seasons change.

• D) The tilt of Earth's axis makes Earth’s atmosphere thinner, which changes the seasons throughout the year.