Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 891 · 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: the slope of the string is what we measure. (a) False (b) True
2. 2.True or false: the swimmer goes backward. (a) True (b) False
3. 3.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
4. 4.⚖️ 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
5. 5.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a balloon (c) a drinking straw (d) sticky tape
7. 7.⚖️ 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
8. 8.🎈 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
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
10. 10.True or false: the swimmer goes forward. (a) False (b) True
11. 11.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same tape (d) the same straw
13. 13.True or false: air from the balloon goes forward. (a) True (b) False
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a drinking straw (d) a balloon
15. 15.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
16. 16.🎈 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
17. 17.🛟 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
18. 18.True or false: the rowing boat goes forward. (a) False (b) True
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the swimmer
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
23. 23.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.True or false: water a swimmer pushes goes forward. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.⚖️ 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 slope of the string
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) two chairs (d) a battery cell
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
31. 31.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) a mirror (d) yeast
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a mirror (d) a long string
34. 34.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water a swimmer pushes (d) the rocket
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) sticky tape (d) a magnet
37. 37.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
38. 38.True or false: water a swimmer pushes goes backward. (a) False (b) True
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) two chairs (d) a long string
40. 40.True or false: a mirror is needed for the balloon rocket. (a) False (b) True

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