Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 130 · 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 string”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a battery cell (d) a balloon
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
4. 4.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
5. 5.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the balloon (d) the rowing boat
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a mirror (d) a balloon
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
8. 8.True or false: the rocket goes forward. (a) True (b) False
9. 9.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a drinking straw
11. 11.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
12. 12.⚖️ 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
13. 13.True or false: water from the oars goes backward. (a) True (b) False
14. 14.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
15. 15.True or false: the rocket goes backward. (a) False (b) True
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) a long string
19. 19.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a long string (d) a battery cell
22. 22.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
23. 23.🚀 Which of these goes backward? (a) the balloon (b) gas from the rocket (c) the rowing boat (d) the swimmer
24. 24.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same straw
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a drinking straw (d) sticky tape
27. 27.🎈 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
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) distance it travels (d) the same string
29. 29.True or false: the rowing boat goes backward. (a) True (b) False
30. 30.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
31. 31.True or false: yeast is needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
33. 33.⚖️ 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) distance it travels (c) the same string
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
35. 35.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a magnet (d) a battery cell
36. 36.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
37. 37.⚖️ 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
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
39. 39.True or false: the balloon goes backward. (a) False (b) True
40. 40.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False

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