Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 853 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) a drinking straw (d) a balloon
2. 2.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a mirror (c) two chairs (d) a long string
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
8. 8.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the rowing boat
9. 9.⚖️ 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 tape (c) distance it travels
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a drinking straw (d) vinegar
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) sticky tape (d) a drinking straw
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) a magnet (d) yeast
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 change it (b) we keep it the same (c) we measure it
14. 14.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
15. 15.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rocket (d) the rowing boat
16. 16.⚖️ 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) True (b) False
17. 17.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
18. 18.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
19. 19.True or false: water a swimmer pushes goes backward. (a) False (b) True
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ 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
24. 24.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
25. 25.🎈 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
26. 26.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the slope of the string
28. 28.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the swimmer (d) the rowing boat
29. 29.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the swimmer (d) gas from the rocket
30. 30.⚖️ 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 tape (d) distance it travels
31. 31.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rocket (d) the rowing boat
32. 32.True or false: gas from the rocket goes backward. (a) False (b) True
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a drinking straw (d) two chairs
36. 36.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a long string (d) a battery cell
38. 38.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚖️ 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

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