Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 431 · 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 goes forward? (a) the rowing boat (b) gas from the rocket (c) water from the oars (d) air from the balloon
2. 2.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
3. 3.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the swimmer
4. 4.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) vinegar (d) a long string
6. 6.True or false: the rocket goes backward. (a) False (b) True
7. 7.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a magnet (d) sticky tape
8. 8.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) yeast (d) a magnet
9. 9.⚖️ 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
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) vinegar
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a long string (d) a balloon
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
16. 16.⚖️ 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 straw (c) the same string (d) the slope of the string
17. 17.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
18. 18.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
19. 19.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water from the oars (d) gas from the rocket
20. 20.⚖️ 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) distance it travels (d) the same string
21. 21.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
23. 23.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) turmeric powder (d) sticky tape
25. 25.True or false: water from the oars goes forward. (a) True (b) False
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
27. 27.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a magnet (d) vinegar
28. 28.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) two chairs (d) a drinking straw
30. 30.🎈 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
31. 31.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a drinking straw (d) a long string
34. 34.⚖️ 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 slope of the string
35. 35.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
36. 36.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
40. 40.True or false: a long string is not needed for the balloon rocket. (a) False (b) True

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