Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 193 · 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.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.⚖️ 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
4. 4.🛟 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
5. 5.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
7. 7.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
8. 8.🎈 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
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
10. 10.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the balloon (d) the swimmer
13. 13.🚀 Which of these goes backward? (a) the swimmer (b) gas from the rocket (c) the balloon (d) the rowing boat
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) yeast (d) a balloon
15. 15.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
17. 17.🛟 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
18. 18.True or false: the swimmer goes backward. (a) True (b) False
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) a balloon (d) two chairs
20. 20.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same string (c) distance it travels (d) how big we blow it
22. 22.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) two chairs (d) a mirror
24. 24.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
25. 25.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) water a swimmer pushes (d) the rowing boat
26. 26.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same tape (c) how big we blow it
28. 28.⚖️ 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 straw (c) the same string (d) how big we blow it
29. 29.True or false: the rocket goes forward. (a) True (b) False
30. 30.⚖️ 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 same straw (c) distance it travels
31. 31.True or false: the swimmer goes forward. (a) True (b) False
32. 32.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
33. 33.🎈 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
34. 34.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a balloon (d) a mirror
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) sticky tape (d) a long string
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
38. 38.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) turmeric powder (d) sticky tape
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts

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