Balloon Rocket STEM Worksheet

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

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