Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 503 · 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 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
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) two chairs (d) yeast
5. 5.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
6. 6.🛟 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
7. 7.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
8. 8.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
9. 9.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚖️ 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 string (c) how big we blow it (d) the same straw
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the rowing boat
13. 13.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) sticky tape (d) two chairs
16. 16.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.True or false: gas from the rocket goes forward. (a) True (b) False
20. 20.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
23. 23.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) vinegar (d) two chairs
25. 25.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
26. 26.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
27. 27.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
28. 28.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a mirror (d) a balloon
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
31. 31.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) gas from the rocket (d) the balloon
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a long string (d) two chairs
33. 33.True or false: air from the balloon goes backward. (a) False (b) True
34. 34.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) air from the balloon
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a balloon (d) a magnet
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
39. 39.True or false: air from the balloon goes forward. (a) True (b) False
40. 40.True or false: the rowing boat goes backward. (a) True (b) False

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