Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 240 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) the same string (d) distance it travels
2. 2.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
3. 3.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a drinking straw (d) yeast
6. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
7. 7.⚖️ 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 same tape
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
10. 10.⚖️ 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
11. 11.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) air from the balloon (d) the rowing boat
12. 12.True or false: yeast is needed for the balloon rocket. (a) True (b) False
13. 13.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) water a swimmer pushes (d) water from the oars
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
16. 16.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
18. 18.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
19. 19.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
20. 20.🔮 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
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) two chairs (d) turmeric powder
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
25. 25.True or false: gas from the rocket goes forward. (a) True (b) False
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
27. 27.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
28. 28.True or false: water from the oars goes forward. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) two chairs
30. 30.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
31. 31.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) air from the balloon (d) the rowing boat
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
33. 33.🛟 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
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) sticky tape (d) a magnet
37. 37.🧺 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) a battery cell
38. 38.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
39. 39.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the swimmer (d) the rowing boat
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a mirror (d) two chairs

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