Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 779 · 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: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
2. 2.True or false: yeast is needed for the balloon rocket. (a) False (b) True
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a battery cell (d) turmeric powder
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the slope of the string (c) how big we blow it (d) the same straw
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) a drinking straw
11. 11.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ 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
14. 14.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
15. 15.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
16. 16.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
17. 17.⚖️ 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
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
19. 19.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
20. 20.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
21. 21.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) the same straw (d) how big we blow it
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.True or false: water a swimmer pushes goes backward. (a) False (b) True
25. 25.🚀 Which of these goes forward? (a) gas from the rocket (b) the rocket (c) water from the oars (d) air from the balloon
26. 26.True or false: water from the oars goes backward. (a) True (b) False
27. 27.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
29. 29.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
30. 30.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
31. 31.True or false: the rowing boat goes forward. (a) True (b) False
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
34. 34.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a balloon (c) turmeric powder (d) a mirror
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) yeast (d) a long string
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) vinegar (c) a balloon (d) a long string
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the swimmer
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) vinegar

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