Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 439 · 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? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: water a swimmer pushes goes backward. (a) True (b) False
3. 3.🎈 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) distance it travels (c) the same string (d) the same tape
5. 5.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
6. 6.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
7. 7.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) sticky tape (d) a balloon
9. 9.True or false: air from the balloon goes forward. (a) True (b) False
10. 10.🔮 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
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a long string (d) a balloon
12. 12.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the swimmer (d) air from the balloon
13. 13.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
14. 14.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) air from the balloon
15. 15.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) two chairs (d) a long string
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) vinegar (d) a magnet
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
20. 20.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) vinegar (d) a drinking straw
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a drinking straw (d) a balloon
24. 24.⚖️ 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
25. 25.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the rowing boat
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
27. 27.True or false: water a swimmer pushes goes forward. (a) False (b) True
28. 28.⚖️ 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 straw (c) distance it travels
29. 29.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
30. 30.⚖️ 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) distance it travels (c) how big we blow it (d) the same string
31. 31.True or false: the swimmer goes backward. (a) False (b) True
32. 32.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) gas from the rocket
33. 33.True or false: a long string is needed for the balloon rocket. (a) True (b) False
34. 34.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the swimmer (d) the rowing boat
35. 35.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a battery cell (d) a drinking straw
36. 36.True or false: gas from the rocket goes forward. (a) True (b) False
37. 37.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
40. 40.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther

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