Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 82 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a balloon (d) sticky tape
2. 2.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
3. 3.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
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.⚖️ 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 keep it the same (c) we measure it
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) a balloon (d) a drinking straw
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) the same tape (d) distance it travels
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a battery cell (d) a drinking straw
9. 9.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the balloon
10. 10.⚖️ 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 measure it (c) we change it
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) vinegar (d) sticky tape
12. 12.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) two chairs (d) turmeric powder
13. 13.True or false: air from the balloon goes forward. (a) False (b) True
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) sticky tape (d) turmeric powder
16. 16.⚖️ 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
17. 17.🚀 Which of these goes backward? (a) the rowing boat (b) water a swimmer pushes (c) the balloon (d) the swimmer
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
19. 19.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) sticky tape (d) vinegar
20. 20.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) air from the balloon
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a mirror (d) a balloon
24. 24.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
26. 26.True or false: the rocket goes backward. (a) True (b) False
27. 27.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
28. 28.True or false: the rowing boat goes backward. (a) False (b) True
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
30. 30.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
31. 31.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) gas from the rocket (d) water from the oars
32. 32.⚖️ 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) the same string (c) how big we blow it (d) the same tape
33. 33.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
34. 34.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
35. 35.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
36. 36.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
38. 38.True or false: gas from the rocket goes forward. (a) True (b) False
39. 39.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
40. 40.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True

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