Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 164 · 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 drinking straw (b) a magnet (c) vinegar (d) a mirror
2. 2.⚖️ 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
3. 3.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the slope of the string (c) how big we blow it (d) the same straw
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a magnet (c) yeast (d) a mirror
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a magnet (d) a battery cell
9. 9.True or false: the rowing boat goes backward. (a) False (b) True
10. 10.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) gas from the rocket (d) the rowing boat
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) a mirror
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
14. 14.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
15. 15.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
18. 18.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
19. 19.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rocket (d) the balloon
20. 20.⚖️ 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
21. 21.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
22. 22.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
23. 23.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
25. 25.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
26. 26.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
29. 29.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: the rocket goes backward. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rowing boat (d) the balloon
34. 34.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.⚖️ 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 same tape
37. 37.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rowing boat
38. 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
39. 39.⚖️ 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
40. 40.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed

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