Balloon Rocket STEM Worksheet

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

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