Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 255 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
3. 3.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
5. 5.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
7. 7.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
8. 8.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
10. 10.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ 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) the same straw (d) how big we blow it
12. 12.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
13. 13.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
14. 14.True or false: a long string is needed for the balloon rocket. (a) False (b) True
15. 15.⚖️ 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 tape
16. 16.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) yeast (d) a magnet
19. 19.⚖️ 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
20. 20.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
21. 21.⚖️ 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
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.⚖️ 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
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a balloon (d) a drinking straw
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) yeast (d) two chairs
27. 27.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
28. 28.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the balloon
29. 29.True or false: gas from the rocket goes backward. (a) True (b) False
30. 30.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
31. 31.True or false: air from the balloon goes forward. (a) True (b) False
32. 32.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
33. 33.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) sticky tape (d) a mirror
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a balloon (d) a magnet
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the slope of the string
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a battery cell (d) two chairs
38. 38.🔮 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
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a battery cell (d) a long string

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