Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 536 · 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 blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
3. 3.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a long string (d) a balloon
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) yeast (d) sticky tape
6. 6.True or false: the swimmer goes forward. (a) False (b) True
7. 7.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
8. 8.⚖️ 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
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) a drinking straw
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.True or false: gas from the rocket goes backward. (a) True (b) False
13. 13.⚖️ 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
14. 14.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
15. 15.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the swimmer (d) the balloon
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) vinegar (d) a balloon
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a mirror (d) a magnet
19. 19.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) yeast (d) sticky tape
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (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) distance it travels (b) the same string (c) the same straw (d) how big we blow it
23. 23.🚀 Which of these goes forward? (a) the rowing boat (b) water a swimmer pushes (c) air from the balloon (d) gas from the rocket
24. 24.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) gas from the rocket
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
26. 26.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) two chairs (d) a mirror
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same tape (c) how big we blow it
29. 29.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
30. 30.True or false: the swimmer goes backward. (a) True (b) False
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) a battery cell
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
34. 34.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same tape (c) distance it travels (d) the same straw
36. 36.⚖️ 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
37. 37.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
40. 40.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False

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