Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 793 · 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.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) turmeric powder (d) two chairs
2. 2.True or false: air from the balloon goes forward. (a) True (b) False
3. 3.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.🎈 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
7. 7.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
8. 8.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) air from the balloon (d) the balloon
9. 9.📘 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
10. 10.True or false: the balloon goes backward. (a) True (b) False
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
14. 14.True or false: the rocket goes forward. (a) True (b) False
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a balloon (d) a drinking straw
16. 16.True or false: the rowing boat goes backward. (a) False (b) True
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a drinking straw (d) vinegar
19. 19.⚖️ 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) distance it travels (c) the slope of the string
20. 20.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
21. 21.⚖️ 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
22. 22.True or false: a long string is needed for the balloon rocket. (a) True (b) False
23. 23.🛟 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
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a magnet (d) a balloon
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a magnet (d) a drinking straw
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) yeast (d) sticky tape
27. 27.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
28. 28.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
29. 29.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same tape
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) a balloon (d) a long string
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) sticky tape (d) a mirror
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) a mirror
35. 35.🔮 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
36. 36.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
37. 37.True or false: gas from the rocket goes backward. (a) False (b) True
38. 38.⚖️ 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) the same tape (c) distance it travels (d) how big we blow it
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) vinegar (d) a drinking straw
40. 40.True or false: water a swimmer pushes goes forward. (a) False (b) True

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