Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 176 · 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.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a long string (d) a magnet
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same tape (c) the slope of the string (d) distance it travels
3. 3.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
4. 4.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ 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) False (b) True
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) yeast (d) a long string
7. 7.⚖️ 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) how big we blow it (c) the same string (d) the same tape
8. 8.🎈 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
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) a mirror
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
11. 11.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
13. 13.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rowing boat (d) water a swimmer pushes
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
16. 16.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
17. 17.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
18. 18.True or false: the balloon goes forward. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) sticky tape (d) a balloon
20. 20.True or false: air from the balloon goes backward. (a) False (b) True
21. 21.⚖️ 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 straw (c) how big we blow it
22. 22.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
23. 23.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
31. 31.📘 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
32. 32.True or false: water a swimmer pushes goes backward. (a) False (b) True
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a long string (d) turmeric powder
34. 34.True or false: water a swimmer pushes goes forward. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: the swimmer goes backward. (a) False (b) True
37. 37.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the rowing boat (d) the balloon
38. 38.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
39. 39.⚖️ 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
40. 40.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the swimmer (d) water from the oars

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