Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 656 · 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.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
2. 2.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) yeast
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
7. 7.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
8. 8.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) tea leaves from tea (c) salt from sea water (d) bad grains from rice
9. 9.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
10. 10.🫗 How do we separate small stones from dal? (a) sieving (b) filtering (c) winnowing (d) handpicking
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) the filter material (d) how clear the water is
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
13. 13.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a magnet (d) a battery cell
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 amount poured (c) the filter material (d) the same glass
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
17. 17.True or false: bran from wheat flour is done by sieving. (a) True (b) False
18. 18.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) a clean glass (d) cotton or cloth
21. 21.⚖️ 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
22. 22.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
24. 24.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a battery cell (c) a mirror (d) yeast
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a clean glass (c) muddy water (d) cotton or cloth
27. 27.True or false: yeast is needed for the muddy water filter. (a) True (b) False
28. 28.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) winnowing (d) sieving
29. 29.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
31. 31.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) gravel from fine sand (c) small stones from dal (d) salt from sea water
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a funnel (d) muddy water
33. 33.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) small stones from dal (c) mud from water (d) bran from wheat flour
34. 34.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) chaff from wheat grain (c) salt from sea water (d) gravel from fine sand
35. 35.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) winnowing (d) evaporating
36. 36.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
38. 38.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) handpicking (d) evaporating
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the amount poured
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) turmeric powder (d) sand and pebbles

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