Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 95 · 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) muddy water (b) a funnel (c) sand and pebbles (d) yeast
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) sand and pebbles (d) a clean glass
3. 3.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) chaff from wheat grain (c) small stones from dal (d) sugar from sugar water
4. 4.⚖️ 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 same glass (c) the filter material
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a magnet (d) a funnel
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
7. 7.⚖️ 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) True (b) False
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) yeast (d) cotton or cloth
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🫗 How do we separate tea leaves from tea? (a) winnowing (b) filtering (c) sieving (d) handpicking
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
13. 13.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a clean glass (d) turmeric powder
15. 15.True or false: salt from sea water is done by evaporating. (a) True (b) False
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
17. 17.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
18. 18.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
19. 19.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) filtering (d) evaporating
20. 20.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
21. 21.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) cotton or cloth (d) yeast
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
24. 24.⚖️ 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 same muddy water (c) the filter material
25. 25.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) yeast (d) sand and pebbles
26. 26.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it dissolves (d) it sinks to the bottom
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) sand and pebbles (d) a funnel
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) chaff from wheat grain (d) gravel from fine sand
31. 31.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) tea leaves from tea (d) salt from sea water
32. 32.⚖️ 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) False (b) True
33. 33.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
34. 34.True or false: salt from sea water is done by filtering. (a) False (b) True
35. 35.True or false: husk from rice grain is done by winnowing. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
37. 37.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
38. 38.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) clearer (d) hot
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) how clear the water is (d) the same muddy water
40. 40.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed

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