Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 658 · 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.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) sticky tape (d) vinegar
3. 3.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
4. 4.⚖️ 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 slope of the string (c) distance it travels
5. 5.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
6. 6.⚖️ 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
7. 7.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
8. 8.True or false: the balloon goes backward. (a) False (b) True
9. 9.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the rowing boat
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) distance it travels (d) the same string
11. 11.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) yeast (c) a mirror (d) vinegar
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same string (c) the same straw (d) how big we blow it
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) sticky tape (d) a balloon
14. 14.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
15. 15.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a battery cell (d) turmeric powder
16. 16.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) water a swimmer pushes (d) air from the balloon
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) vinegar (c) a drinking straw (d) a long string
19. 19.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the balloon (d) the swimmer
20. 20.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
21. 21.⚖️ 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 keep it the same (c) we measure it
22. 22.🎈 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
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) a mirror
24. 24.⚖️ 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
25. 25.True or false: the rocket goes backward. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
32. 32.True or false: water from the oars goes forward. (a) True (b) False
33. 33.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
34. 34.True or false: gas from the rocket goes backward. (a) True (b) False
35. 35.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a drinking straw (d) turmeric powder
37. 37.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
38. 38.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
40. 40.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the swimmer (d) the rocket

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