Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 692 · 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.True or false: gas from the rocket goes forward. (a) True (b) False
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
5. 5.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
9. 9.⚖️ 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
10. 10.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
11. 11.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) distance it travels (d) the slope of the string
13. 13.True or false: a long string is needed for the balloon rocket. (a) False (b) True
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the slope of the string (d) distance it travels
15. 15.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.True or false: the rocket goes forward. (a) False (b) True
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) sticky tape (d) a drinking straw
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
20. 20.True or false: the balloon goes forward. (a) False (b) True
21. 21.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
22. 22.True or false: water a swimmer pushes goes forward. (a) False (b) True
23. 23.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
24. 24.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a magnet (d) a battery cell
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
28. 28.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
29. 29.⚖️ 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 straw
30. 30.True or false: the balloon goes backward. (a) False (b) True
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a balloon (d) vinegar
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ 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
34. 34.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) a long string (d) a drinking straw
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) sticky tape (d) a drinking straw
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 measure it (c) we change it
39. 39.🛟 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
40. 40.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly

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