Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 31 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
2. 2.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
3. 3.🫗 How do we separate bran from wheat flour? (a) filtering (b) handpicking (c) winnowing (d) sieving
4. 4.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
5. 5.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
6. 6.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) salt from sea water (c) husk from rice grain (d) chaff from wheat grain
7. 7.True or false: sugar from sugar water is done by filtering. (a) False (b) True
8. 8.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
11. 11.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) yeast (d) sand and pebbles
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) cotton or cloth (d) a clean glass
14. 14.🫗 How do we separate salt from sea water? (a) evaporating (b) filtering (c) sieving (d) winnowing
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same funnel (b) the same muddy water (c) the amount poured (d) the filter material
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
17. 17.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a magnet (d) muddy water
19. 19.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
20. 20.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.True or false: husk from rice grain is done by handpicking. (a) True (b) False
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
24. 24.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) sieving (d) filtering
25. 25.True or false: husk from rice grain is done by winnowing. (a) True (b) False
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a balloon (d) sand and pebbles
27. 27.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) salt from sea water (c) bad grains from rice (d) sugar from sugar water
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a funnel (c) a clean glass (d) muddy water
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a funnel (d) turmeric powder
31. 31.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
32. 32.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
33. 33.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same glass
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
37. 37.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) tea leaves from tea
38. 38.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bran from wheat flour (c) tea leaves from tea (d) sugar from sugar water
39. 39.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) winnowing (d) filtering
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it

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