Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 761 · 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) a long string (b) a drinking straw (c) sticky tape (d) yeast
2. 2.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the swimmer (d) the balloon
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) vinegar (d) a balloon
4. 4.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
5. 5.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) gas from the rocket (d) the rocket
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) sticky tape (d) a balloon
9. 9.True or false: the balloon goes backward. (a) True (b) False
10. 10.True or false: the rowing boat goes forward. (a) True (b) False
11. 11.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
14. 14.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
16. 16.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
18. 18.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
19. 19.🛟 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
20. 20.True or false: the rowing boat goes backward. (a) False (b) True
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a mirror (d) a balloon
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a long string (d) two chairs
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) two chairs (d) a magnet
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) sticky tape (d) a balloon
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.True or false: the rocket goes forward. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) a drinking straw (d) a long string
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) gas from the rocket (d) the balloon
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) the slope of the string (d) distance it travels
32. 32.⚖️ 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
33. 33.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
34. 34.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the swimmer (d) the rowing boat
35. 35.True or false: the rocket goes backward. (a) True (b) False
36. 36.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
37. 37.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
38. 38.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
40. 40.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string

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