Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 523 · 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 turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
2. 2.⚖️ 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) the slope of the string (c) how big we blow it (d) the same tape
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a balloon (d) a battery cell
4. 4.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the swimmer (d) the balloon
5. 5.🛟 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
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a long string (d) a magnet
9. 9.True or false: yeast is needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) a mirror
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a battery cell (d) two chairs
12. 12.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ 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 string (c) distance it travels (d) the slope of the string
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) yeast (d) a long string
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ 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
18. 18.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) a magnet
20. 20.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
23. 23.True or false: gas from the rocket goes backward. (a) True (b) False
24. 24.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a battery cell (d) a long string
25. 25.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
27. 27.True or false: the balloon goes backward. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
29. 29.⚖️ 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
30. 30.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
31. 31.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
32. 32.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) water a swimmer pushes
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) vinegar
34. 34.True or false: the swimmer goes forward. (a) True (b) False
35. 35.True or false: the rowing boat goes backward. (a) True (b) False
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a long string (d) two chairs
37. 37.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) two chairs (d) a mirror
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold

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