Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 652 · 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) more friction, less far (c) no change at all (d) less friction
2. 2.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
3. 3.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
4. 4.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.⚖️ 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
7. 7.True or false: a long string is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) turmeric powder (d) two chairs
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.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) a long string
11. 11.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
18. 18.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
19. 19.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the balloon (d) the rocket
20. 20.⚖️ 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
21. 21.⚖️ 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 string
22. 22.True or false: water from the oars goes forward. (a) False (b) True
23. 23.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
24. 24.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
25. 25.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same string
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
28. 28.True or false: the rocket goes forward. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
30. 30.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a magnet (d) sticky tape
33. 33.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the balloon
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) vinegar (c) a drinking straw (d) a balloon
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 mirror (b) two chairs (c) a long string (d) sticky tape
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) a balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same straw (c) distance it travels (d) the slope of the string
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) two chairs (d) yeast

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