Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 585 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the slope of the string (d) the same tape
5. 5.⚖️ 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
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) how big we blow it (d) the same string
9. 9.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) two chairs (d) sticky tape
14. 14.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
15. 15.True or false: water from the oars goes backward. (a) False (b) True
16. 16.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
17. 17.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
18. 18.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the rowing boat
19. 19.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
23. 23.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
24. 24.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
26. 26.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the swimmer (d) the balloon
29. 29.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water a swimmer pushes (d) water from the oars
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) air from the balloon (d) the swimmer
31. 31.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
32. 32.True or false: gas from the rocket goes backward. (a) False (b) True
33. 33.True or false: the balloon goes forward. (a) True (b) False
34. 34.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) two chairs (d) yeast
36. 36.⚖️ 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) distance it travels (c) the slope of the string
37. 37.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a drinking straw (d) a balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a drinking straw (d) two chairs

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