Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 396 · 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.True or false: salt from sea water is done by handpicking. (a) False (b) True
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
3. 3.⚖️ 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 amount poured (c) the filter material (d) the same muddy water
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
6. 6.🛟 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
7. 7.🫗 Which of these is done by filtering? (a) small stones from dal (b) husk from rice grain (c) tea leaves from tea (d) salt from sea water
8. 8.🫗 Which of these is done by sieving? (a) salt from sea water (b) mud from water (c) gravel from fine sand (d) sugar from sugar water
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the water (c) nothing (d) the salt
10. 10.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) sand and pebbles (d) a mirror
11. 11.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) winnowing
12. 12.🧺 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) yeast
13. 13.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
14. 14.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) a mirror (d) a balloon
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 funnel (b) how clear the water is (c) the filter material
17. 17.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) sand and pebbles (d) a funnel
19. 19.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) filtering (d) handpicking
20. 20.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a battery cell (d) muddy water
22. 22.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
23. 23.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
24. 24.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) hot (c) muddier (d) salty
25. 25.True or false: husk from rice grain is done by winnowing. (a) False (b) True
26. 26.True or false: bad grains from rice is done by handpicking. (a) True (b) False
27. 27.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) small stones from dal (d) salt from sea water
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) how clear the water is (c) the filter material
29. 29.🧺 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) a magnet
30. 30.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) husk from rice grain (c) salt from sea water (d) mud from water
31. 31.⚖️ 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) how clear the water is (c) the filter material
32. 32.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
34. 34.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
35. 35.True or false: mud from water is done by evaporating. (a) False (b) True
36. 36.True or false: sugar from sugar water is done by sieving. (a) True (b) False
37. 37.⚖️ 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 keep it the same (b) we change it (c) we measure it
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) a balloon (d) a mirror
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) sand and pebbles (d) a clean glass
40. 40.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) handpicking (d) evaporating

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