Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 736 · 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) how big we blow it (b) the same string (c) distance it travels (d) the same tape
2. 2.True or false: the swimmer goes forward. (a) False (b) True
3. 3.⚖️ 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
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
5. 5.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
6. 6.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
7. 7.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
8. 8.True or false: a long string is needed for the balloon rocket. (a) False (b) True
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) distance it travels (d) how big we blow it
10. 10.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
11. 11.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
13. 13.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) water a swimmer pushes
14. 14.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water a swimmer pushes (d) the rowing boat
15. 15.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
16. 16.🎈 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
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (d) a balloon
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) a balloon (d) sticky tape
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a balloon (c) a magnet (d) a mirror
21. 21.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
25. 25.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) yeast (d) sticky tape
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
27. 27.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
28. 28.True or false: water a swimmer pushes goes forward. (a) True (b) False
29. 29.True or false: yeast is needed for the balloon rocket. (a) True (b) False
30. 30.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
32. 32.⚖️ 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 same string
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) vinegar (d) two chairs
36. 36.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
40. 40.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it

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