Balloon Rocket STEM Worksheet

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

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