Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 922 · 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.🔮 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
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
4. 4.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
5. 5.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
6. 6.⚖️ 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
7. 7.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) sticky tape (d) vinegar
10. 10.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) turmeric powder (d) sticky tape
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
14. 14.True or false: the rocket goes forward. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a long string (d) sticky tape
17. 17.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the balloon (d) the rocket
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ 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) distance it travels (c) the slope of the string
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) sticky tape (d) two chairs
23. 23.⚖️ 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 tape (c) distance it travels
24. 24.True or false: yeast is needed for the balloon rocket. (a) True (b) False
25. 25.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.⚖️ 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 string (c) the same straw (d) how big we blow it
28. 28.True or false: air from the balloon goes backward. (a) False (b) True
29. 29.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a mirror (d) two chairs
31. 31.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 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
34. 34.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) air from the balloon
35. 35.🛟 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
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.True or false: gas from the rocket goes backward. (a) True (b) False
38. 38.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
39. 39.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
40. 40.True or false: gas from the rocket goes forward. (a) True (b) False

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