Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 417 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same string (d) the slope of the string
2. 2.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a balloon (d) sticky tape
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
7. 7.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the swimmer
8. 8.True or false: the balloon goes backward. (a) True (b) False
9. 9.True or false: gas from the rocket goes forward. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a mirror (d) a drinking straw
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.True or false: yeast is needed for the balloon rocket. (a) True (b) False
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a balloon (c) a drinking straw (d) sticky tape
15. 15.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
16. 16.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) a long string (d) a drinking straw
18. 18.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) two chairs (d) vinegar
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a long string (d) two chairs
20. 20.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
21. 21.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.True or false: the swimmer goes forward. (a) False (b) True
27. 27.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
29. 29.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) air from the balloon
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
34. 34.🔮 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
35. 35.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
36. 36.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
37. 37.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) a magnet (d) a battery cell
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a battery cell
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend

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