Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 750 · 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? Which of these is kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
2. 2.⚖️ 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 tape
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) yeast (d) a battery cell
5. 5.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) a magnet pulls it (d) the straw is heavy
6. 6.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the rocket (d) the swimmer
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) turmeric powder
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) vinegar (d) sticky tape
12. 12.🛟 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
13. 13.🔮 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
14. 14.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
15. 15.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
17. 17.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
20. 20.True or false: yeast 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 same tape”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) sticky tape
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a drinking straw (d) yeast
25. 25.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
26. 26.True or false: the rocket goes backward. (a) True (b) False
27. 27.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
29. 29.⚖️ 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
30. 30.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) gas from the rocket (d) water a swimmer pushes
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) how big we blow it (c) the same string (d) the same straw
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
33. 33.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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 measure it (c) we change it
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) two chairs (d) a long string
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ 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

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