Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 357 · 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 blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
2. 2.⚖️ 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) how big we blow it (d) the slope of the string
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) the same tape (d) how big we blow it
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
5. 5.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
6. 6.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
7. 7.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
8. 8.⚖️ 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
9. 9.🎈 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
10. 10.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
11. 11.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
13. 13.⚖️ 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
14. 14.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
15. 15.True or false: the rocket goes forward. (a) False (b) True
16. 16.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) a magnet (d) a mirror
19. 19.True or false: water from the oars goes backward. (a) False (b) True
20. 20.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
22. 22.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) turmeric powder (d) yeast
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
26. 26.⚖️ 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
27. 27.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rowing boat (d) water from the oars
28. 28.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
29. 29.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
30. 30.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a long string (d) a balloon
33. 33.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
36. 36.⚖️ 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 string (c) distance it travels
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) air from the balloon (d) gas from the rocket
39. 39.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: water a swimmer pushes goes backward. (a) False (b) True

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