Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 212 · 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) True (b) False
2. 2.🫗 Which of these is done by sieving? (a) salt from sea water (b) chaff from wheat grain (c) bran from wheat flour (d) mud from water
3. 3.True or false: husk from rice grain is done by handpicking. (a) True (b) False
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
5. 5.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) salt from sea water (c) bran from wheat flour (d) chaff from wheat grain
6. 6.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
7. 7.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
8. 8.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) handpicking (d) evaporating
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
10. 10.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
11. 11.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a balloon (d) muddy water
13. 13.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
15. 15.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) a clean glass
17. 17.🛟 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
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
19. 19.True or false: small stones from dal is done by handpicking. (a) True (b) False
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same muddy water (c) the filter material (d) the same funnel
21. 21.True or false: yeast is needed for the muddy water filter. (a) False (b) True
22. 22.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
23. 23.⚖️ 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 funnel (c) the filter material
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the amount poured (c) how clear the water is (d) the same glass
25. 25.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
26. 26.🫗 Which of these is done by evaporating? (a) mud from water (b) small stones from dal (c) salt from sea water (d) bran from wheat flour
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) muddy water (d) cotton or cloth
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a battery cell (d) a funnel
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ 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
35. 35.🫗 Which of these is done by filtering? (a) husk from rice grain (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
36. 36.True or false: bran from wheat flour is done by sieving. (a) True (b) False
37. 37.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ 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) True (b) False
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) turmeric powder (d) sand and pebbles

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