Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 239 · 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.⚖️ 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 string (c) distance it travels (d) the slope of the string
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
4. 4.True or false: yeast is needed for the balloon rocket. (a) False (b) True
5. 5.True or false: water a swimmer pushes goes forward. (a) False (b) True
6. 6.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
7. 7.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
8. 8.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
9. 9.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) water a swimmer pushes
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) two chairs (d) a long string
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
12. 12.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
13. 13.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a balloon (d) yeast
15. 15.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a drinking straw (d) a long string
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
18. 18.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rocket (d) air from the balloon
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the balloon
20. 20.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a battery cell (c) turmeric powder (d) yeast
24. 24.⚖️ 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) the same straw (c) how big we blow it (d) distance it travels
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a balloon (d) vinegar
26. 26.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the swimmer
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
28. 28.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
29. 29.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
30. 30.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
33. 33.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) a balloon (d) turmeric powder
35. 35.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
36. 36.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
39. 39.⚖️ 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 measure it (c) we change it
40. 40.⚖️ 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

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