Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 217 · 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? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) yeast
3. 3.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the rowing boat
4. 4.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
5. 5.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) two chairs (d) a long string
7. 7.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
8. 8.True or false: yeast is needed for the balloon rocket. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
12. 12.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a drinking straw (d) two chairs
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
18. 18.⚖️ 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 tape (c) the same straw (d) distance it travels
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a magnet (d) a balloon
21. 21.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) water from the oars
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a magnet (d) two chairs
24. 24.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) it never stops (d) when it gets cold
25. 25.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
26. 26.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ 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) False (b) True
28. 28.🔮 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
29. 29.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a magnet (d) turmeric powder
31. 31.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) how big we blow it (d) the same string
33. 33.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the swimmer
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a battery cell (d) a drinking straw
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
36. 36.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
38. 38.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
39. 39.⚖️ 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 slope of the string (c) distance it travels
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) a balloon (d) two chairs

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