Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 518 · 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 magnet for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a drinking straw (d) a long string
3. 3.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
4. 4.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a drinking straw (d) a magnet
6. 6.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
7. 7.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same straw
9. 9.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: air from the balloon goes backward. (a) False (b) True
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
14. 14.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
17. 17.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
18. 18.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) sticky tape (c) a balloon (d) two chairs
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
21. 21.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
22. 22.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a drinking straw (d) two chairs
24. 24.⚖️ 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
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) distance it travels (c) how big we blow it (d) the slope of the string
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
31. 31.🔮 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
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) a mirror
33. 33.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ 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) the slope of the string (c) distance it travels
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
36. 36.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water from the oars (d) the rowing boat
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) yeast
38. 38.True or false: the balloon goes forward. (a) True (b) False
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) vinegar (d) a drinking straw
40. 40.True or false: the rowing boat goes forward. (a) False (b) True

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