Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 408 · 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 goes backward? (a) the rowing boat (b) the rocket (c) water from the oars (d) the balloon
2. 2.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
3. 3.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
5. 5.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
6. 6.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
7. 7.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a balloon (d) sticky tape
9. 9.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
10. 10.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
11. 11.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
13. 13.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
15. 15.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
16. 16.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
18. 18.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the balloon (d) the rowing boat
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) sticky tape (d) a magnet
20. 20.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) vinegar (d) a long string
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same straw (c) how big we blow it (d) the slope of the string
25. 25.True or false: air from the balloon goes forward. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
27. 27.True or false: water from the oars goes backward. (a) False (b) True
28. 28.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
29. 29.True or false: a long string is needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) sticky tape
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a battery cell
32. 32.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
33. 33.⚖️ 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
34. 34.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
35. 35.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) gas from the rocket (d) water from the oars
36. 36.⚖️ 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
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a magnet (d) a long string
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
39. 39.🚀 Which of these goes forward? (a) the rowing boat (b) water from the oars (c) gas from the rocket (d) air from the balloon
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) vinegar (d) two chairs

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