Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 358 · 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.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
3. 3.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
4. 4.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the rocket (d) the balloon
5. 5.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
6. 6.⚖️ 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 slope of the string
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) vinegar (d) sticky tape
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
9. 9.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
12. 12.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a mirror (d) vinegar
14. 14.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) two chairs (d) sticky tape
16. 16.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
17. 17.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
18. 18.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
19. 19.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a balloon (d) yeast
21. 21.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rowing boat (d) the swimmer
22. 22.🔮 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
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a mirror
24. 24.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
26. 26.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
28. 28.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) vinegar (d) two chairs
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the same tape (d) distance it travels
31. 31.True or false: yeast is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a magnet (c) a long string (d) two chairs
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
34. 34.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the swimmer (d) water from the oars
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
36. 36.True or false: water from the oars goes forward. (a) False (b) True
37. 37.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) water from the oars
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same string (c) the same tape (d) the same straw
39. 39.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
40. 40.True or false: air from the balloon goes forward. (a) True (b) False

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