Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 204 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a balloon (d) turmeric powder
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a balloon (d) two chairs
6. 6.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
7. 7.True or false: the balloon goes forward. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (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? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.True or false: water a swimmer pushes goes forward. (a) True (b) False
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a drinking straw (d) a magnet
12. 12.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the swimmer
13. 13.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) vinegar (d) a balloon
15. 15.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
18. 18.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
19. 19.⚖️ 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) how big we blow it (c) the same straw (d) the same tape
20. 20.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) vinegar (d) a battery cell
22. 22.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
23. 23.True or false: the balloon goes backward. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a balloon (d) a drinking straw
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) yeast (d) a balloon
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
27. 27.⚖️ 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
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
30. 30.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
31. 31.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water a swimmer pushes (d) the swimmer
32. 32.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
33. 33.🎈 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
34. 34.🧺 Do we need a battery cell 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 same string is the one thing we change. (a) False (b) True
36. 36.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars
37. 37.True or false: air from the balloon goes forward. (a) True (b) False
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) turmeric powder (d) a long string
39. 39.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: water a swimmer pushes goes backward. (a) False (b) True

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