Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 311 · 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 the one thing we change? (a) the slope of the string (b) the same straw (c) how big we blow it (d) the same string
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a balloon (d) two chairs
4. 4.True or false: the rocket goes backward. (a) False (b) True
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
6. 6.⚖️ 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
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) sticky tape (d) yeast
8. 8.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) a magnet (d) turmeric powder
9. 9.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same string (c) distance it travels (d) the same tape
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a balloon (d) a long string
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
15. 15.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
16. 16.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) gas from the rocket
17. 17.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
18. 18.🛟 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
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a drinking straw (d) a magnet
20. 20.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
21. 21.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
24. 24.⚖️ 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
25. 25.True or false: air from the balloon goes backward. (a) True (b) False
26. 26.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) gas from the rocket (d) the rowing boat
27. 27.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
29. 29.⚖️ 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
30. 30.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a battery cell (d) a long string
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a magnet (d) two chairs
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.True or false: gas from the rocket goes backward. (a) False (b) True
37. 37.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a balloon (d) sticky tape

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