Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 516 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) two chairs (d) a battery cell
2. 2.True or false: the swimmer goes forward. (a) True (b) False
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
4. 4.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
5. 5.True or false: gas from the rocket goes forward. (a) False (b) True
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
7. 7.⚖️ 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
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) sticky tape (c) two chairs (d) a long string
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
11. 11.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same string
13. 13.⚖️ 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
14. 14.⚖️ 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 same tape (c) distance it travels (d) how big we blow it
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
16. 16.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
17. 17.True or false: the balloon goes backward. (a) False (b) True
18. 18.True or false: the rowing boat goes forward. (a) True (b) False
19. 19.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
20. 20.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
21. 21.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a mirror (d) a balloon
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) two chairs (d) a magnet
27. 27.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
29. 29.⚖️ 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
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water from the oars (d) the rocket
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) yeast (d) a balloon
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
34. 34.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) turmeric powder
36. 36.⚖️ 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
37. 37.True or false: yeast is needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) a balloon (d) sticky tape
39. 39.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) a long string

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