Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 300 · 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.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water from the oars (d) the rowing boat
2. 2.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
3. 3.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
4. 4.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a long string (c) a battery cell (d) a magnet
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same straw (c) how big we blow it (d) the slope of the string
6. 6.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
7. 7.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
8. 8.True or false: the balloon goes forward. (a) True (b) False
9. 9.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) turmeric powder (d) a long string
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) yeast
15. 15.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a drinking straw (d) a balloon
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
19. 19.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rowing boat (d) gas from the rocket
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) yeast
22. 22.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
23. 23.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
24. 24.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
25. 25.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a balloon (c) a drinking straw (d) two chairs
29. 29.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) a magnet (d) yeast
31. 31.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
33. 33.True or false: the swimmer goes forward. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
35. 35.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
36. 36.True or false: water a swimmer pushes goes backward. (a) False (b) True
37. 37.⚖️ 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 change it (c) we measure it
38. 38.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
39. 39.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) vinegar (d) sticky tape

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