Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 284 · 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 does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
2. 2.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a mirror (d) a battery cell
4. 4.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
5. 5.True or false: yeast is needed for the balloon rocket. (a) False (b) True
6. 6.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
7. 7.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a balloon (d) a mirror
9. 9.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
10. 10.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
11. 11.True or false: the balloon goes backward. (a) False (b) True
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) the slope of the string
15. 15.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rowing boat (d) the swimmer
16. 16.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) a mirror
19. 19.🎈 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
20. 20.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the rocket
21. 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the balloon
23. 23.True or false: air from the balloon goes backward. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
26. 26.⚖️ 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
27. 27.🔮 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
28. 28.⚖️ 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
29. 29.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
30. 30.True or false: a long string is needed for the balloon rocket. (a) True (b) False
31. 31.True or false: the balloon goes forward. (a) True (b) False
32. 32.🧺 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) yeast
33. 33.⚖️ 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 keep it the same (c) we change it
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
35. 35.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
36. 36.⚖️ 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
37. 37.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
39. 39.🛟 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
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 measure it (b) we keep it the same (c) we change it

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