Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 363 · 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.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it blows air in (d) it makes it heavier
2. 2.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
3. 3.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) gas from the rocket (c) the rocket (d) the rowing boat
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a drinking straw (d) a long string
6. 6.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) air from the balloon
7. 7.🛟 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
8. 8.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a balloon (d) a magnet
9. 9.True or false: a long string is needed for the balloon rocket. (a) False (b) True
10. 10.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
11. 11.⚖️ 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 slope of the string
12. 12.⚖️ 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
13. 13.True or false: the rowing boat goes backward. (a) True (b) False
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
15. 15.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same straw
17. 17.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
18. 18.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
19. 19.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a mirror (d) a long string
26. 26.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
27. 27.🎈 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
28. 28.⚖️ 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) the same tape (c) distance it travels (d) the same string
29. 29.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) two chairs (d) a drinking straw
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.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
33. 33.True or false: water from the oars goes backward. (a) False (b) True
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a mirror (d) yeast
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a drinking straw (d) a magnet
37. 37.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
39. 39.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ 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

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