Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 226 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a mirror
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a long string (d) a battery cell
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) distance it travels (d) how big we blow it
5. 5.🛟 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
6. 6.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
7. 7.True or false: water a swimmer pushes goes forward. (a) False (b) True
8. 8.⚖️ 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) distance it travels (c) the slope of the string
9. 9.True or false: the rocket goes backward. (a) False (b) True
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
14. 14.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a balloon (d) a long string
16. 16.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
18. 18.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) the same tape (d) how big we blow it
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) a drinking straw
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) yeast (d) a long string
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
27. 27.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: the swimmer goes backward. (a) False (b) True
29. 29.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the rocket (d) the swimmer
30. 30.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
31. 31.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ 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
33. 33.True or false: water from the oars goes forward. (a) False (b) True
34. 34.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) a magnet (d) a battery cell
36. 36.⚖️ 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
37. 37.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
39. 39.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it makes it heavier (d) it holds water
40. 40.🚀 Which of these goes forward? (a) the rowing boat (b) water from the oars (c) gas from the rocket (d) water a swimmer pushes

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