Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 324 · 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.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
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? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.⚖️ 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) the same string (c) distance it travels
5. 5.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a magnet (d) a drinking straw
11. 11.True or false: gas from the rocket goes forward. (a) True (b) False
12. 12.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) gas from the rocket (d) water a swimmer pushes
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) vinegar (d) a long string
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
16. 16.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
17. 17.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the balloon (d) the swimmer
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
19. 19.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
20. 20.🔮 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
21. 21.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the rocket
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) yeast
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) a mirror
25. 25.True or false: air from the balloon goes forward. (a) True (b) False
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) distance it travels (d) the slope of the string
29. 29.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
30. 30.True or false: water a swimmer pushes goes forward. (a) False (b) True
31. 31.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
32. 32.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) two chairs (d) yeast
33. 33.True or false: yeast is needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) yeast (d) a long string
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
37. 37.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
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.⚖️ 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 straw (c) the slope of the string (d) distance it travels

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