Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 550 · 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) the balloon (b) the rocket (c) the swimmer (d) gas from the rocket
2. 2.⚖️ 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
3. 3.⚖️ 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) True (b) False
4. 4.🔮 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
5. 5.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) two chairs (d) sticky tape
7. 7.True or false: the swimmer goes backward. (a) True (b) False
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a drinking straw (d) a balloon
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 keep it the same (c) we measure it
10. 10.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
11. 11.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
12. 12.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
13. 13.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
14. 14.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) gas from the rocket (d) air from the balloon
15. 15.⚖️ 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) how big we blow it (c) the slope of the string (d) the same string
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a battery cell (d) sticky tape
18. 18.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
19. 19.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.⚖️ 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) the same straw (c) distance it travels
22. 22.True or false: water from the oars goes forward. (a) False (b) True
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.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
25. 25.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) vinegar (d) a magnet
28. 28.True or false: the rocket goes forward. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
30. 30.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
34. 34.🛟 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
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) water a swimmer pushes
37. 37.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) two chairs (d) a drinking straw
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) sticky tape (d) turmeric powder

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