Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 965 · 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? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
3. 3.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) a magnet
5. 5.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
6. 6.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
7. 7.True or false: air from the balloon goes forward. (a) False (b) True
8. 8.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
9. 9.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the swimmer (d) the balloon
10. 10.True or false: the balloon goes forward. (a) False (b) True
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
12. 12.🎈 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
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) sticky tape (d) vinegar
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a battery cell (d) a long string
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) turmeric powder (d) a balloon
17. 17.True or false: the rocket goes backward. (a) True (b) False
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.⚖️ 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 keep it the same (c) we change it
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
24. 24.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the rocket (d) gas from the rocket
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) vinegar (d) a drinking straw
27. 27.⚖️ 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 string (c) how big we blow it (d) the same straw
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
29. 29.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the rocket (d) the rowing boat
30. 30.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
31. 31.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) vinegar (d) a magnet
35. 35.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
37. 37.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the rowing boat
38. 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
39. 39.⚖️ 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
40. 40.True or false: a long string is needed for the balloon rocket. (a) False (b) True

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