Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 620 · 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.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
2. 2.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) vinegar (d) a balloon
5. 5.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the balloon (d) the rowing boat
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) turmeric powder (d) a balloon
7. 7.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the balloon (d) the swimmer
8. 8.True or false: yeast is not 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) how big we blow it (b) distance it travels (c) the same string (d) the same straw
10. 10.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a long string (d) a drinking straw
12. 12.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
14. 14.True or false: gas from the rocket goes backward. (a) False (b) True
15. 15.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
16. 16.📘 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
17. 17.True or false: the balloon goes backward. (a) True (b) False
18. 18.🚀 Which of these goes forward? (a) water from the oars (b) the rocket (c) air from the balloon (d) gas from the rocket
19. 19.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
20. 20.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
22. 22.True or false: the rocket goes backward. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) vinegar (d) a magnet
25. 25.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
26. 26.🔮 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
27. 27.⚖️ 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
28. 28.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a drinking straw (d) a mirror
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same tape (d) how big we blow it
32. 32.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
34. 34.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the swimmer
35. 35.True or false: a long string is needed for the balloon rocket. (a) False (b) True
36. 36.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water a swimmer pushes (d) the balloon
37. 37.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) yeast
39. 39.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) yeast

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