Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 456 · 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) more friction, less far (b) it goes faster (c) no change at all (d) less friction
2. 2.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) the same straw (d) how big we blow it
5. 5.⚖️ 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
6. 6.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) a battery cell
8. 8.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
9. 9.True or false: water a swimmer pushes goes forward. (a) True (b) False
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
12. 12.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
13. 13.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
16. 16.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a balloon (d) vinegar
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) two chairs (d) yeast
19. 19.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
20. 20.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
21. 21.True or false: the swimmer goes backward. (a) False (b) True
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) sticky tape (d) a balloon
23. 23.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
24. 24.⚖️ 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
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
27. 27.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
30. 30.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
31. 31.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rocket (d) air from the balloon
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? True or false: how big we blow it is the one thing we change. (a) True (b) False
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it 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 the one thing we change. (a) True (b) False
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
39. 39.True or false: yeast is needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a battery cell (d) a mirror

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