Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 462 · 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: a drinking straw is not needed for the balloon rocket. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same string (d) how big we blow it
3. 3.⚖️ 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 string (c) how big we blow it
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) vinegar (c) a long string (d) a drinking straw
6. 6.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
7. 7.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) two chairs (d) turmeric powder
10. 10.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
11. 11.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
12. 12.True or false: the rocket goes backward. (a) False (b) True
13. 13.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a mirror (d) a long string
15. 15.⚖️ 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 measure it (c) we change it
16. 16.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
17. 17.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
18. 18.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) vinegar (d) a long string
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚖️ 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 string (c) the same tape (d) the slope of the string
22. 22.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
23. 23.🔮 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
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
25. 25.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) gas from the rocket
26. 26.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
28. 28.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a battery cell (d) a drinking straw
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
32. 32.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) gas from the rocket
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
34. 34.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
35. 35.True or false: gas from the rocket goes forward. (a) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) two chairs (d) a drinking straw
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False

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