Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 152 · 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.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
4. 4.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
5. 5.True or false: air from the balloon goes forward. (a) True (b) False
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) two chairs (d) yeast
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) a drinking straw (d) sticky tape
9. 9.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
10. 10.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a drinking straw (d) two chairs
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
13. 13.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
14. 14.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
15. 15.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rowing boat (d) air from the balloon
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) how big we blow it (d) the slope of the string
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the slope of the string (d) the same straw
19. 19.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
21. 21.⚖️ 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
22. 22.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) air from the balloon
23. 23.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) sticky tape
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) gas from the rocket
27. 27.⚖️ 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
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
30. 30.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) yeast (d) two chairs
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) sticky tape (d) a balloon
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) sticky tape
36. 36.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the swimmer (d) the rowing boat
37. 37.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a drinking straw (d) a battery cell
40. 40.🎈 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

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