Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 309 · 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.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
2. 2.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
3. 3.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
4. 4.True or false: the balloon goes backward. (a) False (b) True
5. 5.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
6. 6.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ 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
8. 8.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
9. 9.True or false: the balloon goes forward. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a long string (d) vinegar
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a magnet
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) turmeric powder
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) sticky tape (d) a long string
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) yeast (d) a drinking straw
16. 16.True or false: air from the balloon goes forward. (a) False (b) True
17. 17.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the swimmer
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
21. 21.⚖️ 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) the slope of the string (d) distance it travels
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a battery cell (d) two chairs
23. 23.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rowing boat
24. 24.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: yeast is needed for the balloon rocket. (a) False (b) True
26. 26.True or false: gas from the rocket goes forward. (a) True (b) False
27. 27.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a long string (d) a balloon
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a drinking straw (d) yeast
30. 30.⚖️ 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
31. 31.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
34. 34.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
35. 35.⚖️ 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
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
39. 39.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rowing boat (d) the rocket
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far

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