Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 441 · 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) less friction (b) no change at all (c) more friction, less far (d) it goes faster
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same string (d) the slope of the string
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) a drinking straw
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
6. 6.True or false: gas from the rocket goes forward. (a) True (b) False
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) turmeric powder
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a long string (d) sticky tape
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a battery cell (d) two chairs
11. 11.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
12. 12.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) turmeric powder (d) a mirror
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
15. 15.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water
16. 16.⚖️ 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) the same straw (d) the same tape
17. 17.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
18. 18.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a long string (d) a mirror
19. 19.True or false: water from the oars goes forward. (a) False (b) True
20. 20.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) a battery cell
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 battery cell is not needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a battery cell (d) sticky tape
26. 26.⚖️ 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
27. 27.True or false: a long string is needed for the balloon rocket. (a) True (b) False
28. 28.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
29. 29.True or false: the swimmer goes forward. (a) False (b) True
30. 30.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
31. 31.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a magnet (d) two chairs
33. 33.True or false: water from the oars goes backward. (a) True (b) False
34. 34.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
35. 35.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) gas from the rocket (d) the swimmer
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
40. 40.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still

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