Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 45 · 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? Which of these is the one thing we change? (a) the same string (b) distance it travels (c) the same tape (d) how big we blow it
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the balloon
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
4. 4.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the rocket (d) the swimmer
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
7. 7.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
8. 8.🚀 Which of these goes backward? (a) the rowing boat (b) water a swimmer pushes (c) the balloon (d) the rocket
9. 9.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a long string (d) a battery cell
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) sticky tape (d) a balloon
11. 11.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
14. 14.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) a balloon (d) vinegar
15. 15.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) air from the balloon
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) two chairs (d) turmeric powder
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a long string (d) a balloon
18. 18.⚖️ 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 straw
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
22. 22.📘 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
23. 23.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
25. 25.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
26. 26.True or false: the rowing boat goes forward. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) distance it travels (d) the slope of the string
28. 28.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
29. 29.🔮 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
30. 30.True or false: yeast is needed for the balloon rocket. (a) True (b) False
31. 31.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
32. 32.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
34. 34.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the swimmer (d) water from the oars
35. 35.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) sticky tape (d) yeast
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
38. 38.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) the string pulls it (d) escaping air pushes it
39. 39.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
40. 40.True or false: water from the oars goes backward. (a) True (b) False

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