Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 672 · 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 mirror (b) yeast (c) a battery cell (d) a drinking straw
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.True or false: air from the balloon goes backward. (a) True (b) False
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
6. 6.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
7. 7.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
8. 8.True or false: gas from the rocket goes backward. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
12. 12.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) the same string (d) how big we blow it
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
17. 17.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) gas from the rocket
18. 18.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) vinegar (c) a balloon (d) a drinking straw
21. 21.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) yeast (d) a battery cell
22. 22.True or false: the rocket goes forward. (a) False (b) True
23. 23.🎈 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
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) a battery cell
27. 27.True or false: gas from the rocket goes forward. (a) True (b) False
28. 28.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) yeast (d) a long string
30. 30.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a magnet (d) a long string
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) vinegar (d) two chairs
33. 33.True or false: air from the balloon goes forward. (a) False (b) True
34. 34.True or false: the rowing boat goes forward. (a) False (b) True
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) a battery cell (d) vinegar
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same string
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
39. 39.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: yeast is needed for the balloon rocket. (a) False (b) True

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