Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 323 · 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.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.⚖️ 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
6. 6.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the rowing boat (d) the swimmer
7. 7.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
8. 8.True or false: water from the oars goes backward. (a) True (b) False
9. 9.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) two chairs (d) vinegar
10. 10.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
12. 12.True or false: water a swimmer pushes goes forward. (a) True (b) False
13. 13.⚖️ 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) False (b) True
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a mirror (d) a balloon
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same tape (c) distance it travels (d) how big we blow it
20. 20.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) water from the oars
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a balloon (d) a drinking straw
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) sticky tape (d) yeast
24. 24.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
26. 26.True or false: air from the balloon goes backward. (a) False (b) True
27. 27.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a balloon (d) a battery cell
29. 29.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
30. 30.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
32. 32.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same tape (d) the same string
36. 36.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
37. 37.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
38. 38.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
39. 39.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
40. 40.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward

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