Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 303 · 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) distance it travels (b) the same straw (c) how big we blow it (d) the same string
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) two chairs (d) a balloon
4. 4.⚖️ 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
5. 5.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
6. 6.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
9. 9.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a sundial (d) a fridge magnet
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a magnet (c) vinegar (d) turmeric powder
11. 11.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the swimmer (d) the rocket
12. 12.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the balloon
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) sticky tape (d) two chairs
15. 15.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
16. 16.True or false: the rocket goes forward. (a) False (b) True
17. 17.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
19. 19.⚖️ 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 change it (c) we measure it
20. 20.True or false: water a swimmer pushes goes backward. (a) False (b) True
21. 21.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) the same straw (d) how big we blow it
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) a mirror
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) sticky tape
26. 26.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
28. 28.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) sticky tape (d) two chairs
30. 30.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
32. 32.True or false: air from the balloon goes forward. (a) False (b) True
33. 33.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
34. 34.⚖️ 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
35. 35.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
38. 38.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
39. 39.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True

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