Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 71 · 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.True or false: water from the oars goes forward. (a) False (b) True
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
3. 3.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
4. 4.🛟 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
5. 5.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
6. 6.True or false: the rocket goes backward. (a) False (b) True
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a mirror
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
10. 10.True or false: the rowing boat goes backward. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the same straw (d) the same tape
13. 13.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
14. 14.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
16. 16.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the swimmer (d) the rowing boat
17. 17.⚖️ 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) the same straw (c) distance it travels
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) turmeric powder (d) a balloon
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
20. 20.⚖️ 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) the same tape (c) distance it travels
21. 21.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a magnet (d) a mirror
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
25. 25.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a long string (d) sticky tape
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) a magnet (d) yeast
30. 30.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a long string (c) a magnet (d) vinegar
31. 31.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
32. 32.True or false: water a swimmer pushes goes forward. (a) True (b) False
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
34. 34.⚖️ 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 slope of the string
35. 35.⚖️ 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 measure it (c) we change it
36. 36.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a battery cell (d) a drinking straw
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) vinegar (d) a drinking straw
38. 38.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
39. 39.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
40. 40.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward

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