Balloon Rocket STEM Worksheet

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

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