Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 443 · 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.🎈 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
2. 2.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
3. 3.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rocket (d) the rowing boat
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) yeast
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) a mirror
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a magnet (d) a drinking straw
10. 10.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
11. 11.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a battery cell (d) a long string
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) gas from the rocket (d) the rowing boat
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a mirror (d) a drinking straw
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) turmeric powder (d) two chairs
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
18. 18.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
19. 19.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) a mirror (d) yeast
20. 20.🔮 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
21. 21.True or false: the balloon goes backward. (a) False (b) True
22. 22.True or false: the swimmer goes forward. (a) False (b) True
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
24. 24.⚖️ 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
25. 25.True or false: the rowing boat goes forward. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
27. 27.⚖️ 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 string (c) how big we blow it
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.⚖️ 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 measure it (c) we change it
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
36. 36.True or false: the rowing boat goes backward. (a) True (b) False
37. 37.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
38. 38.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
39. 39.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) vinegar (d) sticky tape

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