Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 258 · 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.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
2. 2.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
4. 4.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
5. 5.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rowing boat
6. 6.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
7. 7.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
8. 8.⚖️ 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
9. 9.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: yeast is needed for the balloon rocket. (a) True (b) False
11. 11.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
12. 12.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
13. 13.⚖️ 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 tape
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) how big we blow it (d) the same tape
15. 15.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) two chairs (d) a mirror
16. 16.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) vinegar
18. 18.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
19. 19.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: the rowing boat goes forward. (a) False (b) True
21. 21.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the balloon
22. 22.⚖️ 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
23. 23.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.⚖️ 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
26. 26.True or false: the balloon goes backward. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a drinking straw (d) a balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) a battery cell
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
35. 35.⚖️ 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 measure it (c) we change it
36. 36.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) turmeric powder (d) yeast
37. 37.⚖️ 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
38. 38.True or false: a long string is needed for the balloon rocket. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
40. 40.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed

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