Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 708 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
4. 4.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rocket
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🔮 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
11. 11.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same straw (c) the same tape (d) how big we blow it
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
14. 14.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a battery cell
17. 17.⚖️ 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
18. 18.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
19. 19.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
22. 22.True or false: the balloon goes backward. (a) True (b) False
23. 23.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) two chairs
25. 25.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ 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
27. 27.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
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 measure it (b) we keep it the same (c) we change it
29. 29.🧺 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
30. 30.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
31. 31.🛟 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
32. 32.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rowing boat (d) the balloon
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
34. 34.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water a swimmer pushes (d) the rowing boat
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a long string (d) sticky tape
37. 37.⚖️ 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
38. 38.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) air from the balloon
39. 39.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ 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 same straw (c) distance it travels

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