Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 577 · 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 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
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a drinking straw (d) a balloon
3. 3.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) a drinking straw (d) a balloon
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
6. 6.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
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 change it (b) we measure it (c) we keep it the same
8. 8.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the rocket (d) the swimmer
9. 9.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a long string (d) a balloon
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
15. 15.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.True or false: the rocket goes forward. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a long string (d) a balloon
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a magnet
21. 21.True or false: water a swimmer pushes goes backward. (a) False (b) True
22. 22.True or false: the balloon goes forward. (a) False (b) True
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: the rowing boat goes forward. (a) False (b) True
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
27. 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
28. 28.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rowing boat (d) water a swimmer pushes
29. 29.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
31. 31.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
32. 32.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
33. 33.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a magnet (c) yeast (d) a battery cell
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a drinking straw (d) vinegar
35. 35.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
36. 36.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
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) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same straw (d) the slope of the string
39. 39.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True

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