Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 546 · 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 of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the swimmer
2. 2.True or false: air from the balloon goes backward. (a) True (b) False
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a mirror (d) a long string
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same straw (d) the same string
7. 7.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
8. 8.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
9. 9.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) turmeric powder (d) two chairs
11. 11.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
12. 12.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
13. 13.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
14. 14.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
15. 15.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a balloon (d) sticky tape
18. 18.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) two chairs
20. 20.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the rocket
21. 21.True or false: the balloon goes backward. (a) True (b) False
22. 22.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
23. 23.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.⚖️ 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) False (b) True
26. 26.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the swimmer
27. 27.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
28. 28.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) a magnet
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a long string (d) a balloon
32. 32.True or false: a long string is needed for the balloon rocket. (a) True (b) False
33. 33.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars
34. 34.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
35. 35.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
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 straw
37. 37.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror

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