Bill Nye the Science Guy - Gravity online exercise for | Live ... - Free Printable

Let's solve this Gravity worksheet step by step using the Word Bank provided:

Word Bank:

- center
- color
- down
- fall
- fly
- gravity
- ground
- mass
- pulls
- same
- sun
- unequal
- upright
- weight
- wind

> Note: Not all terms are used. Some may be used more than once.

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Now, let’s go through each question and fill in the correct word(s) from the word bank.

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1. The force of gravity always _________.
→ Gravity *pulls* objects toward each other.
✔ Answer: pulls

2. The pull is always toward the _________ of the planet.
→ Gravity pulls toward the center of a planet.
✔ Answer: center

3. Galileo discovered that two objects of _________ weight fell at the same speed.
→ Galileo showed that objects of unequal weight fall at the same rate (ignoring air resistance).
✔ Answer: unequal

4. On the moon, the weight / color of objects makes a difference to the pull of gravity.
→ This statement is false, but we're choosing the correct term. The weight affects gravitational pull, not color.
However, the sentence says "the weight / color" — we must pick one. Since color doesn't affect gravity, and weight does, the correct answer is weight. But the sentence structure implies it's asking which one *does* make a difference.
Actually, the sentence seems to be testing understanding: color does not matter, so the correct choice is weight.
✔ Answer: weight

5. The orbit of the earth is caused by the gravity of the _________.
→ Earth orbits the sun due to its gravity.
✔ Answer: sun

6. Our weight comes from the _________ of the world, our mass, and the force of gravity.
→ Weight depends on mass and gravity. The "world" here refers to Earth. So, the mass of Earth contributes to the gravitational pull.
✔ Answer: mass

7. All the planets orbit / rotate the sun because of the sun's gravity.
→ This sentence is already complete. No blank. But there’s a triangle symbol (△), possibly indicating it’s a true/false or just part of formatting. We’ll skip filling anything here.

8. Without gravity, the planets would _________ off where in a straight direction.
→ Without gravity, planets would fly off in a straight line (due to inertia).
✔ Answer: fly

9. When jumping out of a plane, there is a point where the force of the _________ equals the force of gravity.
→ At terminal velocity, wind resistance (air resistance) balances gravity.
✔ Answer: wind

10. Jupiter, because it is bigger than the Earth, has much more _________.
→ Bigger size means more mass, hence stronger gravity.
✔ Answer: mass

11. Leaves fall to the _________ because of gravity.
→ Leaves fall to the ground.
✔ Answer: ground

12. When you are riding your bike, you are fighting gravity to remain _________.
→ You fight gravity to stay upright.
✔ Answer: upright

13. Gravity causes things to _________ straight down.
→ Things fall downward due to gravity.
✔ Answer: fall

14. No matter where on earth you go, gravity remains the _________.
→ Gravity remains the same (approximately constant near Earth’s surface).
✔ Answer: same

15. Everything is pulled up / down by gravity.
→ Gravity pulls down, not up. So the correct word is down.
✔ Answer: down

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Final Answers:

1. pulls
2. center
3. unequal
4. weight
5. sun
6. mass
7. *(no blank)*
8. fly
9. wind
10. mass
11. ground
12. upright
13. fall
14. same
15. down

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Summary of Words Used:

- pulls – 1
- center – 2
- unequal – 3
- weight – 4
- sun – 5
- mass – 6, 10
- fly – 8
- wind – 9
- ground – 11
- upright – 12
- fall – 13
- same – 14
- down – 15

✔ Unused words: color, gravity (used in context, but not as a fill-in), but “gravity” appears in the word bank and might be implied, though not directly filled in.

Note: "gravity" is mentioned in the title and in the sentences, but no blank requires it directly.

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Final Answer Key:

| # | Answer |
|---|------------|
| 1 | pulls |
| 2 | center |
| 3 | unequal |
| 4 | weight |
| 5 | sun |
| 6 | mass |
| 7 | (no blank) |
| 8 | fly |
| 9 | wind |
|10 | mass |
|11 | ground |
|12 | upright |
|13 | fall |
|14 | same |
|15 | down |

This completes the worksheet! Let me know if you'd like a printable version or explanation for any specific concept.