Balloon Rocket STEM Worksheet

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

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