Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 384 · 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.⚖️ 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
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 same straw (c) how big we blow it
3. 3.⚖️ 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 same tape (d) the same string
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a balloon (d) a drinking straw
5. 5.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a drinking straw (d) a balloon
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) the same tape (d) how big we blow it
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
10. 10.🔮 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
11. 11.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ 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
13. 13.True or false: a long string is needed for the balloon rocket. (a) False (b) True
14. 14.⚖️ 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
15. 15.🔮 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
16. 16.True or false: air from the balloon goes forward. (a) True (b) False
17. 17.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) yeast (d) sticky tape
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same tape (c) how big we blow it
21. 21.True or false: the swimmer goes forward. (a) True (b) False
22. 22.🔮 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
23. 23.True or false: the swimmer goes backward. (a) False (b) True
24. 24.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
25. 25.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
26. 26.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
27. 27.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a battery cell (d) sticky tape
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ 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 keep it the same (c) we change it
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) yeast (d) a drinking straw
31. 31.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
33. 33.True or false: the rowing boat goes backward. (a) False (b) True
34. 34.True or false: the rocket goes forward. (a) False (b) True
35. 35.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
36. 36.True or false: water a swimmer pushes goes forward. (a) True (b) False
37. 37.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the balloon
38. 38.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True

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