Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 170 · 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.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) yeast
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.True or false: gas from the rocket goes backward. (a) True (b) False
6. 6.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the rocket (d) the swimmer
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) turmeric powder
9. 9.⚖️ 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 slope of the string (c) the same string (d) distance it travels
10. 10.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
11. 11.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
12. 12.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a mirror (d) a long string
16. 16.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) air from the balloon (d) water a swimmer pushes
17. 17.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
19. 19.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
20. 20.True or false: a mirror 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 long string (b) a magnet (c) two chairs (d) a drinking straw
22. 22.True or false: a long string is needed for the balloon rocket. (a) True (b) False
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the same straw (d) the same string
24. 24.True or false: gas from the rocket goes forward. (a) True (b) False
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
26. 26.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) the string pulls it (d) escaping air pushes it
27. 27.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: the rocket goes backward. (a) True (b) False
29. 29.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the rocket
33. 33.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
35. 35.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
37. 37.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
39. 39.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ 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) True (b) False

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