Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 643 · 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) two chairs (b) a long string (c) a balloon (d) a magnet
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the swimmer (d) the rowing boat
4. 4.🎈 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
5. 5.⚖️ 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 measure it (c) we change it
6. 6.🛟 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
7. 7.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) turmeric powder (d) two chairs
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a drinking straw (d) a balloon
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) vinegar
13. 13.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) turmeric powder (c) two chairs (d) a balloon
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
16. 16.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
20. 20.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) distance it travels (c) the same string (d) the slope of the string
23. 23.True or false: water a swimmer pushes goes forward. (a) True (b) False
24. 24.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
25. 25.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
26. 26.True or false: gas from the rocket goes forward. (a) True (b) False
27. 27.True or false: the rowing boat goes backward. (a) False (b) True
28. 28.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
29. 29.🎈 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
30. 30.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) how big we blow it (d) the same tape
32. 32.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
33. 33.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
34. 34.True or false: the balloon goes backward. (a) True (b) False
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a mirror (d) a magnet
36. 36.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
37. 37.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
38. 38.True or false: the rocket goes backward. (a) True (b) False
39. 39.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False

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