Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 859 · 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.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
2. 2.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a long string (c) turmeric powder (d) a magnet
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) vinegar
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same straw (c) the same string (d) distance it travels
6. 6.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the balloon
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
9. 9.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) sticky tape (d) a drinking straw
11. 11.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
12. 12.True or false: water a swimmer pushes goes forward. (a) True (b) False
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
14. 14.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) vinegar (d) a long string
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a drinking straw (d) two chairs
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) a balloon (d) two chairs
20. 20.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
21. 21.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
22. 22.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) turmeric powder (d) a long string
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
25. 25.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
26. 26.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
27. 27.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a battery cell (d) two chairs
28. 28.🎈 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
29. 29.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water a swimmer pushes
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) a drinking straw
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a balloon (d) a long string
33. 33.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) two chairs (d) a balloon
36. 36.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the rocket (d) the balloon
37. 37.True or false: water a swimmer pushes goes backward. (a) True (b) False
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a magnet (d) sticky tape
39. 39.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed

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