The document discusses the concept of gravity and its effects. Gravity is defined as the force that pulls objects towards each other. It causes planets to orbit and astronauts to float in space. Gravity also causes tides in the oceans as the Moon's gravity pulls the water towards it. If there was no gravity, objects would not fall to the ground and people would not have weight.

2. Gravity is the force that pulls
objects towards each other.

3. Planets orbit
Astronauts
float in space
Objects fall to
the ground

4. Tides are the
ocean's rise and
fall of water.
They happen
because of the
Moon's gravity
pulling the
water. The Sun's
gravity also
affects tides.

5. A 50 pound child on Earth would weigh...
Weight in pounds!

6. What do you think
would happen if we
did not have gravity?

7. 1. Work in small teams of 3-5 people.
2. Use a whiteboard and dry erase marker to
answer the questions.
3. When the teacher calls time, one person
from the group holds up the board.
4. Points are awarded for correct answers.
5. The team with the most points, wins.

21. 1. Gravity only exists on Earth- False
2. The force of gravity between two objects decreases as the distance between them increases- True
3. Gravity is the force that pulls objects toward each other- True
1. planets
2. moon
3. gravity
1. What causes objects to fall towards the Earth? A
2. Which of the following is true about the force of gravity? D
3. What would happen to your weight if you were on a planet with stronger gravity than Earth? C
4. Which factor affects the strength of the gravitational force between two objects? A