Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 992 · 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: water from the oars goes forward. (a) False (b) True
2. 2.⚖️ 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 measure it (c) we keep it the same
3. 3.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a mirror (d) yeast
4. 4.True or false: air from the balloon goes forward. (a) True (b) False
5. 5.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
9. 9.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) vinegar (d) a long string
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
15. 15.🛟 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
16. 16.⚖️ 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 tape (c) how big we blow it (d) the same straw
17. 17.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a drinking straw (d) a balloon
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) water a swimmer pushes
20. 20.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
21. 21.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
22. 22.⚖️ 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
23. 23.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the rowing boat (d) the balloon
24. 24.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
25. 25.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
26. 26.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
28. 28.True or false: the balloon goes backward. (a) False (b) True
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a battery cell (d) a long string
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) how big we blow it (d) the same string
31. 31.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
36. 36.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the rocket
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a drinking straw (d) a magnet
38. 38.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it guides the balloon (d) it makes it heavier
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a drinking straw (d) a balloon
40. 40.True or false: water a swimmer pushes goes forward. (a) True (b) False

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