Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 271 · 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? True or false: how big we blow it is what we measure. (a) False (b) True
2. 2.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) a long string (d) two chairs
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a battery cell (d) vinegar
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a mirror (c) a long string (d) sticky tape
8. 8.🎈 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
9. 9.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a balloon (d) two chairs
11. 11.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
12. 12.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
13. 13.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
14. 14.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
15. 15.True or false: the balloon goes backward. (a) True (b) False
16. 16.True or false: the rocket goes backward. (a) True (b) False
17. 17.True or false: the swimmer goes backward. (a) False (b) True
18. 18.True or false: the rowing boat goes forward. (a) False (b) True
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
21. 21.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
22. 22.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
23. 23.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) yeast
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) vinegar (d) a long string
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) turmeric powder (d) a balloon
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
33. 33.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) air from the balloon (d) water a swimmer pushes
34. 34.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the balloon
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) a magnet (d) vinegar
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed

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