Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 223 · 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.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a drinking straw (d) turmeric powder
3. 3.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) distance it travels (d) the same straw
5. 5.⚖️ 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) how big we blow it (c) the same string (d) the same straw
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
7. 7.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
8. 8.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) gas from the rocket (d) the balloon
11. 11.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water a swimmer pushes (d) the rowing boat
12. 12.True or false: the rocket goes forward. (a) False (b) True
13. 13.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
14. 14.⚖️ 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
15. 15.True or false: water from the oars goes forward. (a) True (b) False
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) vinegar (d) a long string
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
18. 18.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the swimmer
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the rocket
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
21. 21.True or false: the swimmer goes backward. (a) False (b) True
22. 22.⚖️ 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
23. 23.🎈 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
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a balloon (d) sticky tape
25. 25.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) yeast (d) sticky tape
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a balloon (d) sticky tape
29. 29.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rowing boat (d) air from the balloon
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
32. 32.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
33. 33.True or false: the balloon goes forward. (a) True (b) False
34. 34.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) vinegar (d) two chairs
37. 37.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
38. 38.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) gas from the rocket
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a drinking straw (d) yeast
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) vinegar (d) a mirror

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