Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 590 · 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 slope of the string is what we measure. (a) True (b) False
2. 2.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
4. 4.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
5. 5.True or false: water a swimmer pushes goes forward. (a) False (b) True
6. 6.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
7. 7.True or false: yeast is needed for the balloon rocket. (a) True (b) False
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
10. 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) a long string
13. 13.True or false: gas from the rocket goes forward. (a) False (b) True
14. 14.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) sticky tape (d) two chairs
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) yeast (c) a magnet (d) a mirror
17. 17.⚖️ 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 straw (c) the same string (d) distance it travels
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a magnet (d) a drinking straw
19. 19.⚖️ 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
20. 20.True or false: water from the oars goes forward. (a) True (b) False
21. 21.🎈 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
22. 22.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) how big we blow it (d) the same tape
24. 24.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
26. 26.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
27. 27.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a magnet (d) a balloon
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
29. 29.🎈 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
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a magnet (d) a balloon
31. 31.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (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) distance it travels (b) the same string (c) how big we blow it
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a drinking straw (d) vinegar
35. 35.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) gas from the rocket (d) the rocket
36. 36.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the swimmer (c) air from the balloon (d) water from the oars
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a battery cell (c) a balloon (d) a drinking straw
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the balloon (d) the rocket
39. 39.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False

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