Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 135 · 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.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a battery cell (d) a long string
3. 3.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the rocket
4. 4.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) distance it travels (c) the slope of the string (d) the same straw
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) yeast (c) a long string (d) two chairs
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
8. 8.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
10. 10.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the swimmer (d) the rowing boat
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) distance it travels (d) how big we blow it
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
13. 13.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the swimmer
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a magnet (d) sticky tape
15. 15.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) turmeric powder (d) vinegar
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) turmeric powder (d) two chairs
21. 21.True or false: the balloon goes forward. (a) False (b) True
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) two chairs (d) sticky tape
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.⚖️ 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
25. 25.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
27. 27.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
29. 29.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a balloon (d) a drinking straw
32. 32.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) yeast (d) turmeric powder
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) gas from the rocket (d) the rowing boat
35. 35.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
36. 36.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
37. 37.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the rocket (d) the swimmer
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) vinegar

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