Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 940 · 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 is needed for the balloon rocket? (a) a long string (b) a mirror (c) yeast (d) a magnet
2. 2.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a magnet (d) a drinking straw
4. 4.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the balloon (d) air from the balloon
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the same string (d) the same tape
6. 6.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ 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
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) two chairs (d) turmeric powder
10. 10.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
11. 11.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the swimmer (d) the balloon
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) a drinking straw (d) two chairs
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a balloon (d) a drinking straw
17. 17.True or false: the rowing boat goes forward. (a) True (b) False
18. 18.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the swimmer (d) the balloon
19. 19.⚖️ 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
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
21. 21.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
22. 22.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
27. 27.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
28. 28.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
30. 30.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the swimmer
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
33. 33.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the balloon (d) the rocket
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
35. 35.True or false: the balloon goes backward. (a) True (b) False
36. 36.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
38. 38.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the slope of the string (c) how big we blow it (d) distance it travels
40. 40.🔮 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

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