Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 505 · 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 goes forward? (a) water from the oars (b) water a swimmer pushes (c) the balloon (d) air from the balloon
2. 2.🔮 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
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) yeast
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) two chairs (c) a magnet (d) turmeric powder
6. 6.True or false: the rocket goes forward. (a) False (b) True
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) how big we blow it (d) the same string
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a battery cell (d) a long string
11. 11.True or false: a long string is needed for the balloon rocket. (a) False (b) True
12. 12.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
13. 13.True or false: the balloon goes backward. (a) False (b) True
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
15. 15.True or false: gas from the rocket goes forward. (a) True (b) False
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) two chairs (d) sticky tape
17. 17.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a drinking straw (d) two chairs
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) vinegar (d) sticky tape
21. 21.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a mirror (d) yeast
23. 23.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a drinking straw (d) a balloon
26. 26.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water from the oars (d) the balloon
27. 27.🔮 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
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) vinegar
29. 29.🛟 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
30. 30.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.True or false: the balloon goes forward. (a) True (b) False
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
35. 35.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
36. 36.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
37. 37.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
39. 39.📘 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
40. 40.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) air from the balloon (d) water from the oars

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