Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 250 · 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? True or false: the same straw is kept the same. (a) True (b) False
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
5. 5.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
6. 6.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
7. 7.⚖️ 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 string (c) distance it travels
8. 8.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the balloon (d) the rocket
9. 9.⚖️ 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 change it (c) we measure it
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a mirror (d) turmeric powder
11. 11.True or false: the rowing boat goes backward. (a) True (b) False
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) a magnet
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
15. 15.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a mirror (c) a drinking straw (d) a long string
17. 17.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
18. 18.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the rowing boat
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a long string (d) yeast
21. 21.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) air from the balloon
22. 22.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
23. 23.⚖️ 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
24. 24.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the rowing boat (d) the rocket
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.True or false: gas from the rocket goes forward. (a) False (b) True
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a balloon (d) a magnet
29. 29.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
30. 30.True or false: water a swimmer pushes goes backward. (a) False (b) True
31. 31.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
32. 32.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
33. 33.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
34. 34.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the balloon (d) water a swimmer pushes
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a long string (d) yeast
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a mirror (d) a drinking straw
37. 37.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
40. 40.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour

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