Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 302 · 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 use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
2. 2.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
3. 3.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) air from the balloon (d) water a swimmer pushes
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) turmeric powder
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
7. 7.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) vinegar (d) sticky tape
9. 9.True or false: air from the balloon goes forward. (a) True (b) False
10. 10.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the rowing boat
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a battery cell (c) a long string (d) a drinking straw
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same tape (d) the slope of the string
13. 13.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) water a swimmer pushes (d) the rocket
14. 14.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
15. 15.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
16. 16.⚖️ 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 measure it (c) we change it
17. 17.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the balloon (d) the swimmer
18. 18.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
19. 19.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a long string (d) a balloon
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) a drinking straw (d) a mirror
25. 25.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
26. 26.True or false: the swimmer goes forward. (a) False (b) True
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a drinking straw (d) a magnet
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) two chairs (d) a magnet
29. 29.⚖️ 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
30. 30.True or false: yeast is needed for the balloon rocket. (a) False (b) True
31. 31.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) sticky tape
33. 33.True or false: air from the balloon goes backward. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the balloon (d) the rocket
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) two chairs (d) a battery cell
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
40. 40.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True

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