Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 334 · 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 gets too heavy (c) it turns into a kite (d) it changes colour
2. 2.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
3. 3.🎈 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
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same straw
9. 9.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
11. 11.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
14. 14.⚖️ 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) the same straw (d) distance it travels
15. 15.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
16. 16.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) two chairs (d) a mirror
18. 18.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the rowing boat (d) the balloon
19. 19.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
20. 20.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) yeast (d) vinegar
21. 21.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
22. 22.True or false: the swimmer goes forward. (a) False (b) True
23. 23.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: yeast is needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) two chairs (d) a magnet
30. 30.True or false: water a swimmer pushes goes backward. (a) True (b) False
31. 31.True or false: water from the oars goes forward. (a) True (b) False
32. 32.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rocket (d) water from the oars
33. 33.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) a mirror
35. 35.True or false: the swimmer goes backward. (a) True (b) False
36. 36.⚖️ 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 measure it (c) we change it
37. 37.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a balloon (c) turmeric powder (d) a mirror
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) yeast
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) turmeric powder (d) a long string

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