Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 970 · 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: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) muddy water
3. 3.🫗 Which of these is done by filtering? (a) husk from rice grain (b) small stones from dal (c) salt from sea water (d) tea leaves from tea
4. 4.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
6. 6.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) handpicking (d) sieving
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) cotton or cloth (d) a clean glass
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a battery cell (d) a clean glass
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) yeast (d) a balloon
10. 10.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bad grains from rice (c) salt from sea water (d) gravel from fine sand
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
12. 12.⚖️ 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 filter material (c) the same funnel
13. 13.⚖️ 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 muddy water (b) the amount poured (c) the filter material (d) the same funnel
14. 14.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
16. 16.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
17. 17.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
19. 19.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) clearer (d) hot
20. 20.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) filtering (d) evaporating
21. 21.True or false: small stones from dal is done by sieving. (a) True (b) False
22. 22.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
24. 24.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) bad grains from rice (c) husk from rice grain (d) mud from water
25. 25.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) a funnel
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
30. 30.🫗 How do we separate husk from rice grain? (a) sieving (b) handpicking (c) evaporating (d) winnowing
31. 31.🫗 Which of these is done by filtering? (a) mud from water (b) small stones from dal (c) bad grains from rice (d) bran from wheat flour
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a balloon (d) cotton or cloth
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
35. 35.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) yeast
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it turns to sand (c) it dissolves (d) it sinks to the bottom
37. 37.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
38. 38.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bran from wheat flour (c) bad grains from rice (d) chaff from wheat grain
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a balloon
40. 40.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed

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