Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 216 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) turmeric powder (d) a balloon
2. 2.True or false: gas from the rocket goes backward. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a mirror (d) a balloon
5. 5.⚖️ 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
6. 6.True or false: air from the balloon goes backward. (a) True (b) False
7. 7.⚖️ 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 string (c) the same straw (d) the slope of the string
8. 8.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) water from the oars (d) air from the balloon
9. 9.🎈 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
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the rowing boat
12. 12.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the balloon (d) the swimmer
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) yeast (d) a balloon
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
15. 15.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
16. 16.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) water a swimmer pushes
17. 17.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
19. 19.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
20. 20.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
21. 21.⚖️ 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
22. 22.True or false: water a swimmer pushes goes backward. (a) False (b) True
23. 23.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
25. 25.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a battery cell (d) two chairs
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) the slope of the string (d) distance it travels
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) sticky tape (d) a drinking straw
29. 29.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
30. 30.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
32. 32.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
33. 33.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rowing boat (d) gas from the rocket
34. 34.True or false: the rocket goes forward. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a balloon (d) a drinking straw
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
37. 37.🔮 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
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) yeast (d) a balloon
39. 39.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
40. 40.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite

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