Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 214 · 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.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
2. 2.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
3. 3.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) two chairs (c) turmeric powder (d) a mirror
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a long string (d) a balloon
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
9. 9.⚖️ 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) how big we blow it (c) the same tape (d) the same straw
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) sticky tape (d) a balloon
11. 11.🔮 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
12. 12.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
14. 14.True or false: the balloon goes backward. (a) False (b) True
15. 15.🔮 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
16. 16.🔮 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
17. 17.True or false: the swimmer goes backward. (a) False (b) True
18. 18.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
19. 19.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a drinking straw (c) a mirror (d) a magnet
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
21. 21.True or false: water from the oars goes forward. (a) False (b) True
22. 22.⚖️ 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 string (c) the same tape (d) the same straw
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) sticky tape (d) turmeric powder
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a mirror (c) vinegar (d) a battery cell
26. 26.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) water from the oars
27. 27.⚖️ 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
28. 28.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) a long string (d) sticky tape
30. 30.True or false: the swimmer goes forward. (a) False (b) True
31. 31.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
32. 32.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) air from the balloon
33. 33.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
37. 37.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
38. 38.🛟 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
39. 39.⚖️ 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 straw
40. 40.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed

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