Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 952 · 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.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a battery cell
2. 2.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) evaporating (c) handpicking (d) sieving
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
4. 4.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
5. 5.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
6. 6.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) sieving (d) filtering
7. 7.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
9. 9.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) salt from sea water (c) bad grains from rice (d) chaff from wheat grain
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) a clean glass (d) a funnel
11. 11.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) yeast
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
16. 16.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) a mirror (d) cotton or cloth
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a balloon
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
19. 19.True or false: salt from sea water is done by evaporating. (a) True (b) False
20. 20.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a clean glass (c) a funnel (d) sand and pebbles
22. 22.True or false: salt from sea water is done by winnowing. (a) False (b) True
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) muddy water (d) sand and pebbles
24. 24.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
25. 25.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) winnowing (d) sieving
26. 26.🫗 Which of these is done by sieving? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) salt from sea water
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) how clear the water is (c) the amount poured (d) the filter material
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a funnel (c) a clean glass (d) turmeric powder
29. 29.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) sand and pebbles (d) muddy water
32. 32.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
33. 33.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) turmeric powder (d) yeast
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) winnowing (d) handpicking
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same funnel (d) the same muddy water
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) sand and pebbles
38. 38.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) bad grains from rice (d) small stones from dal
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
40. 40.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always

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