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Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 286 · 40 questions
TalentJR

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.

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

Answer key

  1. escaping air pushes it
  2. water from the oars
  3. yeast
  4. when the air runs out
  5. we measure it
  6. False
  7. distance it travels
  8. vinegar
  9. False
  10. goes forward
  11. True
  12. True
  13. goes backward
  14. needed
  15. goes backward
  16. True
  17. two chairs
  18. a battery cell
  19. we keep it the same
  20. it goes less far
  21. True
  22. False
  23. forward
  24. throw them away safely
  25. True
  26. not needed
  27. False
  28. more friction, less far
  29. False
  30. not needed
  31. False
  32. True
  33. it travels less far
  34. the same tape
  35. True
  36. goes backward
  37. goes forward
  38. not needed
  39. it guides the balloon
  40. needed

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