Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 348 · 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.True or false: gas from the rocket goes forward. (a) False (b) True
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) water a swimmer pushes (d) the swimmer
3. 3.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
5. 5.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a balloon (d) a long string
7. 7.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) two chairs (d) yeast
9. 9.⚖️ 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
10. 10.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
11. 11.True or false: water a swimmer pushes goes forward. (a) False (b) True
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.True or false: water from the oars goes forward. (a) True (b) False
14. 14.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
17. 17.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
18. 18.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rocket (d) air from the balloon
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same string (d) distance it travels
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) yeast
21. 21.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) gas from the rocket
22. 22.⚖️ 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
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) air from the balloon
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the same tape (d) the slope of the string
27. 27.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
29. 29.True or false: the balloon goes forward. (a) True (b) False
30. 30.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
31. 31.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a balloon (d) two chairs
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) sticky tape (d) a drinking straw
36. 36.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a magnet (d) a balloon
39. 39.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
40. 40.True or false: yeast is needed for the balloon rocket. (a) False (b) True

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