Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 359 · 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 is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a magnet (d) a long string
2. 2.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water from the oars
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rocket (d) the rowing boat
6. 6.True or false: the swimmer goes forward. (a) False (b) True
7. 7.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
8. 8.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
9. 9.⚖️ 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
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) how big we blow it (d) distance it travels
12. 12.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
14. 14.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
15. 15.True or false: the balloon goes forward. (a) False (b) True
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels 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 change it (b) we keep it the same (c) we measure it
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
21. 21.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
22. 22.⚖️ 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
23. 23.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) a mirror
25. 25.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a magnet (d) vinegar
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) sticky tape (d) vinegar
28. 28.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
29. 29.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water from the oars (d) the rowing boat
30. 30.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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 tape (c) how big we blow it
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
35. 35.True or false: a long string is needed for the balloon rocket. (a) False (b) True
36. 36.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) a long string
39. 39.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) a balloon (d) a battery cell
40. 40.True or false: air from the balloon goes backward. (a) False (b) True

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