Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 631 · 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.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
3. 3.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
7. 7.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
9. 9.True or false: the rocket goes backward. (a) False (b) True
10. 10.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
11. 11.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a magnet (c) turmeric powder (d) yeast
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) sticky tape (d) a drinking straw
14. 14.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) turmeric powder (d) a mirror
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) a magnet
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) vinegar (d) sticky tape
17. 17.🔮 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
18. 18.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
19. 19.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
20. 20.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the rocket (d) the balloon
25. 25.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it turns blue (d) when it gets cold
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) the same string (d) distance it travels
27. 27.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
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 keep it the same (b) we measure it (c) we change it
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
31. 31.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) water from the oars
32. 32.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a long string (d) a balloon
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a magnet (d) a drinking straw
36. 36.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
37. 37.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
39. 39.True or false: the balloon goes forward. (a) True (b) False
40. 40.True or false: yeast is needed for the balloon rocket. (a) True (b) False

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