Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 282 · 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? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) air from the balloon
3. 3.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
4. 4.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
5. 5.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
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 measure it (c) we keep it the same
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) yeast (d) a long string
8. 8.⚖️ 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
9. 9.⚖️ 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) the slope of the string (c) the same tape (d) how big we blow it
10. 10.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same string
12. 12.True or false: air from the balloon goes forward. (a) False (b) True
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
14. 14.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
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 change it (b) we keep it the same (c) we measure it
16. 16.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) two chairs (d) a drinking straw
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
19. 19.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) a drinking straw (d) two chairs
21. 21.True or false: water from the oars goes forward. (a) True (b) False
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a long string (d) sticky tape
23. 23.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
25. 25.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
28. 28.🛟 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
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a long string (d) a balloon
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) a long string
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
32. 32.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
35. 35.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.⚖️ 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 string (c) distance it travels
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the balloon (d) the rocket
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) sticky tape (d) two chairs
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up

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