Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 811 · 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.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
2. 2.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) two chairs
5. 5.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) yeast (d) sticky tape
7. 7.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) yeast (c) a magnet (d) a battery cell
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
12. 12.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
13. 13.True or false: yeast is needed for the balloon rocket. (a) False (b) True
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a magnet (d) a balloon
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) sticky tape (d) a long string
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) sticky tape (c) a mirror (d) vinegar
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
21. 21.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
22. 22.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
23. 23.True or false: gas from the rocket goes forward. (a) True (b) False
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) turmeric powder
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) how big we blow it
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
30. 30.True or false: the balloon goes forward. (a) True (b) False
31. 31.🎈 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
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a magnet (d) two chairs
33. 33.⚖️ 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
34. 34.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the rocket (d) water a swimmer pushes
35. 35.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
36. 36.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
38. 38.True or false: the swimmer goes forward. (a) False (b) True
39. 39.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True

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