Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 511 · 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.🔮 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
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) water a swimmer pushes (d) the balloon
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) sticky tape (d) vinegar
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) a long string (d) a balloon
7. 7.🚀 Which of these goes forward? (a) the swimmer (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars
8. 8.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
9. 9.True or false: the swimmer goes backward. (a) False (b) True
10. 10.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a magnet (c) turmeric powder (d) a mirror
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same tape (d) the same string
13. 13.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
14. 14.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
15. 15.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the rocket (d) the swimmer
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) two chairs (d) sticky tape
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) vinegar (d) two chairs
19. 19.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
21. 21.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) a mirror
23. 23.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.True or false: the rowing boat goes forward. (a) True (b) False
26. 26.⚖️ 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 tape (c) the slope of the string (d) the same straw
27. 27.True or false: air from the balloon goes backward. (a) False (b) True
28. 28.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
29. 29.🧺 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 balloon
30. 30.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
31. 31.🚀 Which of these goes forward? (a) water from the oars (b) the rocket (c) water a swimmer pushes (d) air from the balloon
32. 32.True or false: water from the oars goes backward. (a) True (b) False
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
35. 35.⚖️ 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 straw
36. 36.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
37. 37.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
38. 38.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rowing boat

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