Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 44 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a long string (d) a drinking straw
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) turmeric powder (d) a mirror
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
4. 4.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a mirror (d) a long string
7. 7.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) water a swimmer pushes (d) the swimmer
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
10. 10.⚖️ 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
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
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 tape (b) the slope of the string (c) the same straw (d) how big we blow it
13. 13.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
14. 14.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) vinegar (d) sticky tape
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a drinking straw (d) sticky tape
20. 20.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
23. 23.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) gas from the rocket (d) water a swimmer pushes
24. 24.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) gas from the rocket (d) air from the balloon
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) air from the balloon (d) the rowing boat
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
27. 27.True or false: water a swimmer pushes goes backward. (a) False (b) True
28. 28.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the swimmer (d) the balloon
29. 29.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) gas from the rocket
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) sticky tape (d) a balloon
31. 31.True or false: the rowing boat goes forward. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a balloon (d) a battery cell
33. 33.⚖️ 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
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
35. 35.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
36. 36.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
37. 37.True or false: air from the balloon goes forward. (a) True (b) False
38. 38.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
39. 39.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror

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