Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 47 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
2. 2.⚖️ 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
3. 3.🚀 Which of these goes forward? (a) water from the oars (b) the rocket (c) air from the balloon (d) water a swimmer pushes
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same straw
5. 5.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) gas from the rocket (d) the balloon
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
7. 7.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
8. 8.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) turmeric powder (d) a balloon
10. 10.⚖️ 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
11. 11.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) the slope of the string (d) how big we blow it
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) turmeric powder (d) yeast
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) a long string
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
18. 18.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
21. 21.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the rowing boat (d) water from the oars
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) two chairs (d) yeast
25. 25.🔮 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
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rowing boat
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a balloon (d) yeast
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
30. 30.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
31. 31.True or false: air from the balloon goes forward. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) vinegar (d) a balloon
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) two chairs (d) sticky tape
36. 36.🧺 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 mirror
37. 37.⚖️ 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
38. 38.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ 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) the same straw (c) distance it travels

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