Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 797 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a mirror
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
3. 3.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a mirror
5. 5.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) winnowing (d) evaporating
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a funnel (d) cotton or cloth
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) sieving (d) filtering
9. 9.⚖️ 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 muddy water
10. 10.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) sugar from sugar water (c) tea leaves from tea (d) gravel from fine sand
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
13. 13.🫗 Which of these is done by handpicking? (a) mud from water (b) chaff from wheat grain (c) sugar from sugar water (d) small stones from dal
14. 14.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
15. 15.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
16. 16.⚖️ 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
17. 17.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) turmeric powder
20. 20.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
21. 21.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) mud from water
22. 22.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
25. 25.True or false: husk from rice grain is done by handpicking. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same muddy water
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) a mirror (d) turmeric powder
31. 31.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a mirror (c) a magnet (d) muddy water
32. 32.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) sieving
33. 33.🫗 Which of these is done by evaporating? (a) mud from water (b) bran from wheat flour (c) small stones from dal (d) salt from sea water
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a magnet (d) a funnel
35. 35.⚖️ 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
36. 36.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) husk from rice grain (d) mud from water
37. 37.⚖️ 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) True (b) False
38. 38.True or false: yeast is needed for the muddy water filter. (a) False (b) True
39. 39.🫗 How do we separate bran from wheat flour? (a) sieving (b) handpicking (c) filtering (d) evaporating
40. 40.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet

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