Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 529 · 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.True or false: air from the balloon goes forward. (a) False (b) True
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.True or false: air from the balloon goes backward. (a) False (b) True
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a battery cell (d) a mirror
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
8. 8.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) turmeric powder (c) two chairs (d) a balloon
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
11. 11.⚖️ 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
12. 12.⚖️ 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) the slope of the string (c) distance it travels (d) the same string
13. 13.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
14. 14.True or false: a long string is needed for the balloon rocket. (a) False (b) True
15. 15.⚖️ 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
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
17. 17.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) a drinking straw
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) two chairs (d) a long string
20. 20.True or false: water from the oars goes forward. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
23. 23.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) vinegar
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a balloon (d) a mirror
28. 28.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the slope of the string (d) the same tape
31. 31.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a battery cell (d) a long string
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a drinking straw (d) a battery cell
35. 35.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the rowing boat (d) water a swimmer pushes
36. 36.True or false: water a swimmer pushes goes forward. (a) False (b) True
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the rocket
38. 38.True or false: water from the oars goes backward. (a) True (b) False
39. 39.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: vinegar is needed for the balloon rocket. (a) False (b) True

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