Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 395 · 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.True or false: air from the balloon goes backward. (a) True (b) False
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
3. 3.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) turmeric powder (d) a long string
5. 5.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
6. 6.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
8. 8.⚖️ 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
9. 9.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a long string (d) a balloon
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a battery cell (d) a long string
12. 12.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a battery cell (d) two chairs
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a drinking straw (d) sticky tape
17. 17.True or false: the balloon goes backward. (a) True (b) False
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) sticky tape (d) a balloon
19. 19.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
21. 21.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the rowing boat
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same string (c) how big we blow it (d) distance it travels
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a balloon (d) a drinking straw
25. 25.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
26. 26.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) water from the oars
27. 27.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) water from the oars
28. 28.⚖️ 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 tape (c) how big we blow it
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
30. 30.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
33. 33.🔮 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
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) a mirror
36. 36.⚖️ 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
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a long string (d) sticky tape
39. 39.⚖️ 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) how big we blow it (c) the same tape (d) distance it travels
40. 40.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed

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