Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 801 · 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 is needed for the balloon rocket? (a) a mirror (b) a balloon (c) yeast (d) turmeric powder
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
5. 5.🛟 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
6. 6.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
7. 7.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
8. 8.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
10. 10.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
11. 11.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a magnet
13. 13.⚖️ 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 slope of the string
14. 14.⚖️ 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) the same straw (c) distance it travels
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) turmeric powder (d) yeast
16. 16.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
17. 17.True or false: the rocket goes backward. (a) True (b) False
18. 18.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
19. 19.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
20. 20.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
21. 21.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rocket (d) gas from the rocket
22. 22.True or false: gas from the rocket goes forward. (a) True (b) False
23. 23.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
24. 24.True or false: the swimmer goes backward. (a) False (b) True
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a balloon (d) turmeric powder
26. 26.True or false: water a swimmer pushes goes backward. (a) True (b) False
27. 27.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the swimmer (d) air from the balloon
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) two chairs (d) turmeric powder
29. 29.True or false: air from the balloon goes forward. (a) True (b) False
30. 30.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
31. 31.⚖️ 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
32. 32.⚖️ 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) True (b) False
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) yeast (d) sticky tape
35. 35.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
36. 36.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) sticky tape (d) vinegar
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the same string (d) the slope of the string
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a drinking straw (d) vinegar
39. 39.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
40. 40.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward

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