Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 222 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) vinegar (d) yeast
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
4. 4.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
7. 7.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) gas from the rocket (d) water from the oars
8. 8.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) sticky tape (d) a mirror
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same tape (c) how big we blow it (d) distance it travels
12. 12.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a drinking straw (d) two chairs
15. 15.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
16. 16.📘 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
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.🛟 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
19. 19.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
20. 20.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
21. 21.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
22. 22.🔮 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
23. 23.True or false: gas from the rocket goes backward. (a) True (b) False
24. 24.⚖️ 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
25. 25.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the rowing boat (d) the swimmer
26. 26.⚖️ 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
27. 27.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
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 of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) turmeric powder (d) a magnet
30. 30.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
31. 31.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.True or false: water a swimmer pushes goes forward. (a) False (b) True
34. 34.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
35. 35.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) a drinking straw
37. 37.True or false: the swimmer goes backward. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) vinegar (d) sticky tape
40. 40.⚖️ 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 change it (c) we keep it the same

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