Balloon Rocket STEM Worksheet

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

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