Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 956 · 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 not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) two chairs (d) a balloon
2. 2.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
3. 3.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
4. 4.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) air from the balloon (d) gas from the rocket
5. 5.⚖️ 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
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
7. 7.True or false: the rowing boat goes backward. (a) True (b) False
8. 8.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
9. 9.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
10. 10.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the balloon (d) water a swimmer pushes
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) yeast (d) a mirror
12. 12.⚖️ 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) the same straw (c) the same string (d) how big we blow it
13. 13.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
14. 14.True or false: air from the balloon goes backward. (a) True (b) False
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a long string (d) yeast
16. 16.⚖️ 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
17. 17.🛟 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
18. 18.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
19. 19.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
20. 20.🛟 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
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) turmeric powder
22. 22.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) sticky tape (d) a mirror
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🔮 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
25. 25.True or false: the balloon goes forward. (a) True (b) False
26. 26.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
27. 27.True or false: air from the balloon goes forward. (a) False (b) True
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
29. 29.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
30. 30.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) vinegar (d) a long string
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the slope of the string (d) the same tape
33. 33.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
34. 34.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) air from the balloon (d) the balloon
37. 37.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
38. 38.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
39. 39.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
40. 40.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy

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