Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 769 · 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 “the same string”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) yeast (d) two chairs
4. 4.🔮 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
5. 5.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
8. 8.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
9. 9.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
10. 10.🎈 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
11. 11.True or false: water a swimmer pushes goes forward. (a) True (b) False
12. 12.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) a mirror (d) a magnet
14. 14.True or false: the rocket goes forward. (a) True (b) False
15. 15.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) two chairs (d) a mirror
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
19. 19.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
20. 20.⚖️ 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) distance it travels (c) the same string (d) how big we blow it
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) two chairs (d) yeast
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) yeast (c) a balloon (d) a long string
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a long string (d) a balloon
27. 27.🚀 Which of these goes forward? (a) the rowing boat (b) water a swimmer pushes (c) gas from the rocket (d) air from the balloon
28. 28.True or false: water from the oars goes backward. (a) True (b) False
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a magnet (d) turmeric powder
30. 30.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
31. 31.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) yeast (d) a battery cell
33. 33.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
35. 35.⚖️ 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) False (b) True
36. 36.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) yeast (d) turmeric powder
38. 38.True or false: gas from the rocket goes forward. (a) False (b) True
39. 39.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True

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