Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 360 · 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.⚖️ 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
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) yeast
5. 5.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
6. 6.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
7. 7.⚖️ 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 tape (c) the slope of the string (d) how big we blow it
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) sticky tape (d) a drinking straw
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
11. 11.True or false: gas from the rocket goes forward. (a) False (b) True
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
13. 13.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
14. 14.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
15. 15.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a balloon (d) a drinking straw
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) two chairs (d) a drinking straw
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a long string (d) yeast
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
21. 21.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water a swimmer pushes (d) the balloon
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
23. 23.True or false: air from the balloon goes backward. (a) True (b) False
24. 24.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) two chairs (d) a mirror
26. 26.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the balloon
27. 27.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
30. 30.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
31. 31.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a drinking straw (d) turmeric powder
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
36. 36.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a balloon (d) turmeric powder
39. 39.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the swimmer (d) water a swimmer pushes
40. 40.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water

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