Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 491 · 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.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) two chairs (d) a mirror
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a balloon (c) two chairs (d) a drinking straw
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
6. 6.True or false: the balloon goes backward. (a) True (b) False
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a magnet (d) two chairs
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
12. 12.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
13. 13.True or false: water a swimmer pushes goes forward. (a) False (b) True
14. 14.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
15. 15.🎈 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
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
17. 17.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a mirror (d) turmeric powder
18. 18.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the swimmer (d) gas from the rocket
19. 19.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a balloon (d) a long string
22. 22.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
24. 24.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
26. 26.True or false: yeast is needed for the balloon rocket. (a) True (b) False
27. 27.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the slope of the string
31. 31.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
32. 32.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the rocket (d) the balloon
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) yeast (c) a balloon (d) a long string
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a battery cell (d) sticky tape
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
37. 37.True or false: air from the balloon goes forward. (a) False (b) True
38. 38.⚖️ 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
39. 39.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) sticky tape (d) a drinking straw

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