Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 216 · 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: sugar from sugar water is done by evaporating. (a) True (b) False
2. 2.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) bad grains from rice (c) small stones from dal (d) salt from sea water
3. 3.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
4. 4.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
5. 5.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
7. 7.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
8. 8.⚖️ 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 glass
9. 9.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
10. 10.True or false: salt from sea water is done by filtering. (a) False (b) True
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same glass (c) the same muddy water (d) how clear the water is
12. 12.🛟 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
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) cotton or cloth (d) a clean glass
14. 14.🫗 Which of these is done by filtering? (a) husk from rice grain (b) bad grains from rice (c) mud from water (d) gravel from fine sand
15. 15.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) a magnet (d) muddy water
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
17. 17.True or false: mud from water is done by handpicking. (a) True (b) False
18. 18.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) sand and pebbles (d) a clean glass
20. 20.🫗 Which of these is done by sieving? (a) husk from rice grain (b) gravel from fine sand (c) bad grains from rice (d) chaff from wheat grain
21. 21.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Which of these is done by sieving? (a) small stones from dal (b) bran from wheat flour (c) mud from water (d) sugar from sugar water
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) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) a battery cell
25. 25.True or false: yeast is needed for the muddy water filter. (a) True (b) False
26. 26.True or false: husk from rice grain is done by winnowing. (a) False (b) True
27. 27.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) sugar from sugar water (c) mud from water (d) bad grains from rice
28. 28.True or false: salt from sea water is done by evaporating. (a) True (b) False
29. 29.True or false: small stones from dal is done by evaporating. (a) False (b) True
30. 30.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) husk from rice grain (d) gravel from fine sand
31. 31.🫗 How do we separate bad grains from rice? (a) handpicking (b) filtering (c) sieving (d) winnowing
32. 32.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
35. 35.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
36. 36.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
37. 37.True or false: tea leaves from tea is done by sieving. (a) True (b) False
38. 38.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it turns to sand (d) it dissolves
39. 39.⚖️ 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) the amount poured (c) how clear the water is
40. 40.⚖️ 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 measure it (c) we change it

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