Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 975 · 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) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a drinking straw (d) sticky tape
3. 3.🎈 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
4. 4.🧺 Do we need a balloon 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) the slope of the string (b) distance it travels (c) the same tape (d) how big we blow it
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
7. 7.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) two chairs (c) sticky tape (d) a long string
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
10. 10.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) turmeric powder (d) sticky tape
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a drinking straw (d) two chairs
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
14. 14.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) it never stops (d) when it turns blue
15. 15.True or false: a long string is needed for the balloon rocket. (a) True (b) False
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) sticky tape (c) vinegar (d) yeast
17. 17.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
18. 18.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
19. 19.⚖️ 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 tape (c) distance it travels (d) the slope of the string
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) vinegar (d) sticky tape
22. 22.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) gas from the rocket (d) air from the balloon
23. 23.True or false: air from the balloon goes forward. (a) True (b) False
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) turmeric powder (d) a long string
26. 26.True or false: yeast is needed for the balloon rocket. (a) False (b) True
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
32. 32.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a drinking straw (d) a magnet
35. 35.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
37. 37.⚖️ 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
38. 38.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the rocket
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
40. 40.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water

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