Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 821 · 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.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
3. 3.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) vinegar (d) a mirror
4. 4.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rowing boat
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) yeast (d) a long string
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) a mirror
7. 7.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
8. 8.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a balloon (d) a battery cell
10. 10.⚖️ 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 slope of the string (d) the same tape
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) distance it travels (c) how big we blow it (d) the same tape
12. 12.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a magnet (d) a drinking straw
14. 14.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
15. 15.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) water from the oars
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
17. 17.⚖️ 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
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a mirror (c) two chairs (d) sticky tape
19. 19.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
21. 21.True or false: gas from the rocket goes backward. (a) False (b) True
22. 22.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) sticky tape (c) vinegar (d) yeast
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a balloon (d) two chairs
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
27. 27.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
29. 29.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the balloon
30. 30.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
31. 31.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
33. 33.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
37. 37.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rocket (d) the rowing boat
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 measure it (c) we keep it the same
39. 39.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the rocket (d) the balloon
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a long string (d) a drinking straw

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