Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 513 · 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 goes backward? (a) gas from the rocket (b) the rowing boat (c) the swimmer (d) the rocket
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
4. 4.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
5. 5.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
6. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ 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 same straw (c) the same string (d) how big we blow it
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
9. 9.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) vinegar (d) a balloon
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a balloon (d) sticky tape
13. 13.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
14. 14.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) vinegar
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.True or false: water from the oars goes backward. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) two chairs (d) sticky tape
21. 21.True or false: the rocket goes forward. (a) False (b) True
22. 22.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
24. 24.⚖️ 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
25. 25.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) vinegar (c) a balloon (d) a drinking straw
29. 29.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
31. 31.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) sticky tape (d) vinegar
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
33. 33.⚖️ 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 string
34. 34.⚖️ 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 measure it (c) we change it
35. 35.🚀 Which of these goes forward? (a) water from the oars (b) the rocket (c) water a swimmer pushes (d) air from the balloon
36. 36.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the balloon (d) the swimmer
37. 37.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
38. 38.⚖️ 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
39. 39.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) two chairs (c) a balloon (d) a drinking straw

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