Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 954 · 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.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the slope of the string (d) the same string
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) turmeric powder (d) sticky tape
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
6. 6.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
8. 8.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
9. 9.True or false: air from the balloon goes backward. (a) True (b) False
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
11. 11.⚖️ 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 straw (c) distance it travels
12. 12.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a magnet (d) yeast
13. 13.True or false: air from the balloon goes forward. (a) False (b) True
14. 14.🛟 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
15. 15.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
16. 16.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a balloon (d) vinegar
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) vinegar (d) two chairs
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
20. 20.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) two chairs (d) sticky tape
22. 22.⚖️ 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
23. 23.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
24. 24.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
25. 25.⚖️ 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
26. 26.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
27. 27.🔮 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
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) vinegar (c) a battery cell (d) a magnet
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a battery cell (d) a drinking straw
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a drinking straw (d) a long string
32. 32.⚖️ 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 straw (d) the same string
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a battery cell (d) a long string
35. 35.⚖️ 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
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
37. 37.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) sticky tape (d) two chairs
40. 40.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the rocket (d) the swimmer

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