Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 751 · 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: air from the balloon goes backward. (a) True (b) False
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) vinegar (d) a balloon
5. 5.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) turmeric powder (d) a balloon
7. 7.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
10. 10.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
11. 11.True or false: water from the oars goes forward. (a) True (b) False
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) a magnet
14. 14.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) a mirror
17. 17.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
18. 18.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
19. 19.True or false: gas from the rocket goes forward. (a) True (b) False
20. 20.⚖️ 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) distance it travels (c) the same tape
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
22. 22.🔮 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
23. 23.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
24. 24.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the swimmer (d) the balloon
25. 25.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) water a swimmer pushes
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
27. 27.⚖️ 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 slope of the string (d) the same string
28. 28.True or false: the rocket goes backward. (a) True (b) False
29. 29.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
30. 30.🔮 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
31. 31.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
32. 32.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
34. 34.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) two chairs (d) vinegar
36. 36.⚖️ 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
37. 37.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) gas from the rocket
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) two chairs (d) a drinking straw

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