Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 755 · 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: the rocket goes backward. (a) False (b) True
2. 2.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) it never stops (d) when it gets cold
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a long string (d) a balloon
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) yeast (d) a balloon
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
7. 7.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
8. 8.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rowing boat (d) water from the oars
9. 9.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
14. 14.True or false: water a swimmer pushes goes backward. (a) False (b) True
15. 15.🛟 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
16. 16.True or false: yeast is needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ 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) how big we blow it (c) the same straw (d) distance it travels
18. 18.🎈 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
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) sticky tape (d) a magnet
21. 21.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a mirror (d) sticky tape
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
25. 25.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) sticky tape
27. 27.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
28. 28.True or false: water from the oars goes backward. (a) False (b) True
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a magnet (d) sticky tape
31. 31.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
33. 33.True or false: gas from the rocket goes forward. (a) True (b) False
34. 34.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
35. 35.⚖️ 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 tape (d) the slope of the string
36. 36.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) turmeric powder (d) a magnet
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) forward (d) straight down
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False

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