Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 275 · 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? True or false: the same straw is the one thing we change. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) a magnet
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the same string (d) the same straw
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a drinking straw (d) a long string
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
7. 7.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rocket
8. 8.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
9. 9.⚖️ 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
10. 10.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
11. 11.True or false: water a swimmer pushes goes backward. (a) True (b) False
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a drinking straw (d) sticky tape
13. 13.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) a balloon
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
17. 17.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) gas from the rocket (d) water from the oars
20. 20.🔮 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
21. 21.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) water a swimmer pushes (d) water from the oars
22. 22.True or false: air from the balloon goes backward. (a) True (b) False
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a magnet (d) a battery cell
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 magnet
25. 25.⚖️ 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 same string (d) the same straw
26. 26.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
27. 27.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the rowing boat (d) the rocket
28. 28.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
29. 29.🎈 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
30. 30.True or false: the rowing boat goes backward. (a) True (b) False
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) gas from the rocket
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a drinking straw (d) a magnet
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) turmeric powder
37. 37.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
38. 38.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
40. 40.True or false: the rocket goes backward. (a) True (b) False

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