Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 661 · 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.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
3. 3.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the swimmer (d) the rowing boat
4. 4.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
5. 5.⚖️ 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 slope of the string (c) the same straw (d) how big we blow it
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a long string (d) yeast
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) the same string (d) distance it travels
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) two chairs (d) a drinking straw
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
11. 11.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) vinegar (d) a balloon
14. 14.⚖️ 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
15. 15.🔮 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
16. 16.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) yeast (d) a balloon
18. 18.True or false: water a swimmer pushes goes forward. (a) False (b) True
19. 19.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
21. 21.🧺 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 magnet
22. 22.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a battery cell (d) sticky tape
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a long string (d) a magnet
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
30. 30.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
31. 31.🛟 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
32. 32.True or false: the rowing boat goes forward. (a) False (b) True
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a drinking straw (d) a long string
34. 34.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
36. 36.True or false: the rowing boat goes backward. (a) False (b) True
37. 37.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
40. 40.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward

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