Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 355 · 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.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) sticky tape (d) a long string
4. 4.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
5. 5.⚖️ 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 tape
6. 6.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the swimmer
7. 7.True or false: yeast is needed for the balloon rocket. (a) False (b) True
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) yeast (d) a mirror
11. 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a drinking straw (d) a magnet
12. 12.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
14. 14.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
15. 15.True or false: the rocket goes backward. (a) False (b) True
16. 16.🛟 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
17. 17.True or false: gas from the rocket goes forward. (a) True (b) False
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
19. 19.⚖️ 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) distance it travels (c) the same string (d) how big we blow it
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
21. 21.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
23. 23.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a magnet (d) a long string
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a drinking straw (d) two chairs
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a balloon (d) a magnet
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
27. 27.⚖️ 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 measure it (c) we change it
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) sticky tape (d) turmeric powder
30. 30.⚖️ 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
31. 31.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ 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 slope of the string (c) distance it travels
34. 34.True or false: gas from the rocket goes backward. (a) False (b) True
35. 35.True or false: the rowing boat goes forward. (a) False (b) True
36. 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
37. 37.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ 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 same string

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