Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 673 · 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 goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
2. 2.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
3. 3.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) air from the balloon (d) gas from the rocket
4. 4.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the balloon (d) the swimmer
5. 5.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) vinegar
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.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
13. 13.⚖️ 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
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the rowing boat
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.True or false: the swimmer goes forward. (a) False (b) True
19. 19.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a balloon (d) yeast
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a magnet (d) a balloon
22. 22.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
26. 26.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) a mirror
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) yeast (d) a drinking straw
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) gas from the rocket (d) the rocket
31. 31.⚖️ 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 same string (c) how big we blow it (d) the same straw
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) distance it travels (d) how big we blow it
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a magnet (d) a long string
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a long string (d) vinegar
35. 35.True or false: the balloon goes forward. (a) True (b) False
36. 36.🛟 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
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) sticky tape
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
40. 40.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False

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