Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 76 · 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) turmeric powder (b) vinegar (c) yeast (d) a long string
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) sticky tape
3. 3.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) water a swimmer pushes
4. 4.⚖️ 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
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
6. 6.⚖️ 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
7. 7.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
9. 9.True or false: the rocket goes forward. (a) True (b) False
10. 10.🧺 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
11. 11.⚖️ 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
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
14. 14.⚖️ 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
15. 15.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
17. 17.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
18. 18.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
20. 20.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
21. 21.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
23. 23.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
24. 24.True or false: yeast is needed for the balloon rocket. (a) True (b) False
25. 25.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a magnet
27. 27.⚖️ 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
28. 28.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) air from the balloon
29. 29.⚖️ 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) how big we blow it (c) the same straw (d) the same tape
30. 30.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
31. 31.⚖️ 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
32. 32.True or false: the balloon goes backward. (a) True (b) False
33. 33.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
34. 34.⚖️ 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 same straw (c) the slope of the string (d) distance it travels
35. 35.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a balloon (c) two chairs (d) a drinking straw
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a mirror (d) a balloon
38. 38.True or false: air from the balloon goes forward. (a) True (b) False
39. 39.True or false: air from the balloon goes backward. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same

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