Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 803 · 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 balloon (b) two chairs (c) a drinking straw (d) yeast
2. 2.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water a swimmer pushes
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the slope of the string (c) distance it travels
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
5. 5.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the balloon (d) air from the balloon
6. 6.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the swimmer
7. 7.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
9. 9.True or false: the rowing boat goes forward. (a) True (b) False
10. 10.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
11. 11.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.⚖️ 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) how big we blow it (c) the slope of the string (d) the same string
15. 15.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a battery cell (d) a magnet
16. 16.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
17. 17.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
18. 18.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) air from the balloon
19. 19.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the rowing boat
20. 20.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
22. 22.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
23. 23.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
26. 26.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rowing boat (d) gas from the rocket
27. 27.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it blows air in (d) it makes it heavier
28. 28.🔮 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
29. 29.🔮 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
30. 30.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
31. 31.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) turmeric powder (d) a drinking straw
32. 32.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
33. 33.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
34. 34.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) distance it travels (d) how big we blow it
37. 37.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: water from the oars goes backward. (a) True (b) False
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
40. 40.True or false: gas from the rocket goes backward. (a) False (b) True

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