Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 124 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a drinking straw
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) put string round a neck (d) blow it till it bursts
3. 3.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
4. 4.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the same straw (d) the same string
6. 6.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
7. 7.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
11. 11.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
13. 13.⚖️ 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
14. 14.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
15. 15.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
16. 16.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ 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
18. 18.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) water from the oars (d) the rowing boat
19. 19.⚖️ 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
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
23. 23.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) sticky tape
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) turmeric powder
26. 26.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a mirror (d) sticky tape
28. 28.⚖️ 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) False (b) True
29. 29.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
30. 30.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a balloon (d) a long string
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
33. 33.⚖️ 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
34. 34.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.True or false: the balloon goes backward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
39. 39.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True

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