Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 651 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the swimmer
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) sticky tape (d) two chairs
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
7. 7.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) vinegar (d) two chairs
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) distance it travels (d) how big we blow it
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) turmeric powder (d) a balloon
11. 11.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the swimmer (d) the rowing boat
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a balloon (c) sticky tape (d) a drinking straw
13. 13.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) two chairs (d) a magnet
15. 15.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
16. 16.True or false: the balloon goes backward. (a) False (b) True
17. 17.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
18. 18.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
21. 21.True or false: air from the balloon goes backward. (a) False (b) True
22. 22.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
23. 23.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
27. 27.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
28. 28.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) water from the oars
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
30. 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
32. 32.True or false: gas from the rocket goes forward. (a) True (b) False
33. 33.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
35. 35.True or false: water from the oars goes forward. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same tape (c) how big we blow it (d) the same straw
37. 37.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same tape
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.True or false: water from the oars goes backward. (a) True (b) False

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