Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 510 · 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.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
2. 2.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
3. 3.True or false: air from the balloon goes backward. (a) True (b) False
4. 4.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
5. 5.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a battery cell (d) a mirror
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same tape
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: the rocket goes forward. (a) False (b) True
9. 9.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a magnet (d) a balloon
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) sticky tape (d) a balloon
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.⚖️ 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 same string (c) how big we blow it (d) the same tape
14. 14.🛟 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
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a mirror (d) a balloon
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.True or false: water a swimmer pushes goes forward. (a) True (b) False
19. 19.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) yeast (d) a balloon
21. 21.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rowing boat (d) water a swimmer pushes
22. 22.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
23. 23.⚖️ 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) False (b) True
24. 24.True or false: yeast is needed for the balloon rocket. (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) distance it travels (b) the same string (c) how big we blow it
26. 26.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a mirror
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
32. 32.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) a balloon (d) a long string
36. 36.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the balloon (d) gas from the rocket
37. 37.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a magnet (d) two chairs
39. 39.⚖️ 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) distance it travels (c) the same straw
40. 40.⚖️ 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

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