Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 525 · 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 slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.⚖️ 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
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
5. 5.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
6. 6.True or false: the swimmer goes backward. (a) True (b) False
7. 7.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) yeast
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
11. 11.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) two chairs (d) a long string
16. 16.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
17. 17.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same straw (c) distance it travels (d) how big we blow it
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
20. 20.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) turmeric powder (d) a drinking straw
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) two chairs (d) sticky tape
23. 23.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
24. 24.True or false: water from the oars goes forward. (a) False (b) True
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
27. 27.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
28. 28.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a magnet (d) sticky tape
30. 30.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
31. 31.True or false: the rocket goes backward. (a) True (b) False
32. 32.🧺 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 battery cell
33. 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a mirror (d) yeast
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) a mirror
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
36. 36.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
38. 38.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
39. 39.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) a battery cell (d) a mirror

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