Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 405 · 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.⚖️ 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) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same string (d) the slope of the string
3. 3.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
4. 4.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the swimmer
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) a battery cell (d) a mirror
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a long string (c) sticky tape (d) a drinking straw
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
8. 8.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
9. 9.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the rocket
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.True or false: gas from the rocket goes backward. (a) False (b) True
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
13. 13.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
14. 14.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) yeast (d) sticky tape
17. 17.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
18. 18.True or false: the swimmer goes backward. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🎈 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
21. 21.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same straw (d) how big we blow it
23. 23.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) two chairs (d) a battery cell
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) a magnet
25. 25.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) sticky tape (d) a drinking straw
27. 27.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a drinking straw (d) turmeric powder
28. 28.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) water from the oars (d) the balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a long string (d) a drinking straw
31. 31.⚖️ 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
32. 32.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
33. 33.True or false: the swimmer goes forward. (a) True (b) False
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
36. 36.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
37. 37.True or false: the rocket goes backward. (a) False (b) True
38. 38.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
40. 40.True or false: the rocket goes forward. (a) True (b) False

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