Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 467 · 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.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
2. 2.True or false: water a swimmer pushes goes forward. (a) True (b) False
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
4. 4.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a balloon (d) sticky tape
8. 8.🧺 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 magnet
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a long string (d) a mirror
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
12. 12.True or false: the rocket goes backward. (a) True (b) False
13. 13.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
15. 15.⚖️ 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
16. 16.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the slope of the string
18. 18.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a mirror (d) vinegar
22. 22.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
25. 25.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) how big we blow it (d) the same string
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) forward (d) straight down
30. 30.True or false: the swimmer goes forward. (a) False (b) True
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) sticky tape
34. 34.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) gas from the rocket (d) water a swimmer pushes
35. 35.True or false: the rowing boat goes backward. (a) True (b) False
36. 36.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
37. 37.True or false: yeast is needed for the balloon rocket. (a) False (b) True
38. 38.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
39. 39.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
40. 40.⚖️ 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

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