Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 461 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) vinegar (d) a balloon
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
4. 4.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (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 kept the same? (a) how big we blow it (b) distance it travels (c) the same string
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
7. 7.True or false: gas from the rocket goes backward. (a) True (b) False
8. 8.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
9. 9.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: air from the balloon goes forward. (a) True (b) False
11. 11.🛟 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
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) distance it travels (d) the slope of the string
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.True or false: the swimmer goes backward. (a) False (b) True
15. 15.True or false: the rowing boat goes backward. (a) True (b) False
16. 16.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
17. 17.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
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 tape”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a battery cell (d) a mirror
25. 25.⚖️ 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) the same straw (c) how big we blow it (d) the same tape
26. 26.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) two chairs (d) a long string
28. 28.⚖️ 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
29. 29.True or false: water a swimmer pushes goes backward. (a) False (b) True
30. 30.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
32. 32.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
37. 37.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a magnet (d) a long string
39. 39.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther

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