Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 593 · 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.⚖️ 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 measure it (c) we keep it the same
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🫗 Which of these is done by sieving? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) chaff from wheat grain
4. 4.True or false: bran from wheat flour is done by filtering. (a) True (b) False
5. 5.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
6. 6.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
7. 7.True or false: husk from rice grain is done by handpicking. (a) True (b) False
8. 8.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
9. 9.⚖️ 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 glass (b) the same muddy water (c) the filter material (d) the amount poured
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a battery cell (d) a funnel
11. 11.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) winnowing (d) evaporating
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) a clean glass
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) yeast (d) muddy water
19. 19.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) evaporating (d) handpicking
20. 20.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
21. 21.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a clean glass (d) cotton or cloth
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) a mirror
25. 25.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
27. 27.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) filtering (d) sieving
28. 28.🫗 Which of these is done by handpicking? (a) mud from water (b) chaff from wheat grain (c) bran from wheat flour (d) bad grains from rice
29. 29.True or false: mud from water is done by filtering. (a) False (b) True
30. 30.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
31. 31.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) winnowing (d) sieving
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) sand and pebbles (d) muddy water
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) sand and pebbles (d) cotton or cloth
34. 34.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) gravel from fine sand (c) small stones from dal (d) salt from sea water
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a funnel (c) a battery cell (d) yeast
39. 39.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
40. 40.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier

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