Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 139 · 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) sticky tape (b) a long string (c) vinegar (d) a balloon
2. 2.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
5. 5.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) gas from the rocket
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a magnet
7. 7.🔮 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 much farther (d) it goes less far
8. 8.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water from the oars (d) gas from the rocket
9. 9.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a magnet (d) two chairs
11. 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) yeast (d) a balloon
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) vinegar (d) a balloon
14. 14.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
15. 15.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a long string (d) yeast
16. 16.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) gas from the rocket
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial
22. 22.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
24. 24.True or false: water a swimmer pushes goes backward. (a) False (b) True
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
26. 26.⚖️ 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
27. 27.⚖️ 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) distance it travels (c) the same tape (d) how big we blow it
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) turmeric powder
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) a battery cell
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a balloon (d) a battery cell
35. 35.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) sticky tape (d) vinegar
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) turmeric powder (d) sticky tape
37. 37.⚖️ 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
38. 38.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
39. 39.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a long string (c) a drinking straw (d) sticky tape

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