Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 948 · 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: small stones from dal is done by handpicking. (a) False (b) True
2. 2.⚖️ 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 amount poured
3. 3.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
4. 4.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
5. 5.🫗 How do we separate gravel from fine sand? (a) filtering (b) winnowing (c) sieving (d) handpicking
6. 6.⚖️ 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 glass (c) the filter material
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a balloon (d) cotton or cloth
8. 8.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
9. 9.⚖️ 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 same glass (c) the filter material (d) the amount poured
10. 10.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) gravel from fine sand (c) salt from sea water (d) husk from rice grain
11. 11.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) mud from water (c) salt from sea water (d) bran from wheat flour
12. 12.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
14. 14.🔮 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
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) husk from rice grain (c) sugar from sugar water (d) gravel from fine sand
18. 18.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) filtering (d) sieving
19. 19.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
20. 20.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the water evaporates (d) the filter adds soap
21. 21.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
23. 23.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) evaporating (d) sieving
24. 24.True or false: small stones from dal is done by evaporating. (a) False (b) True
25. 25.🫗 Which of these is done by filtering? (a) salt from sea water (b) bran from wheat flour (c) mud from water (d) husk from rice grain
26. 26.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) winnowing (d) sieving
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) turmeric powder (d) a mirror
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) turmeric powder (d) muddy water
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) sand and pebbles
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
31. 31.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.True or false: bad grains from rice is done by winnowing. (a) True (b) False
34. 34.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
35. 35.True or false: salt from sea water is done by evaporating. (a) False (b) True
36. 36.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a battery cell
38. 38.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
39. 39.⚖️ 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 same funnel (c) the same muddy water (d) the filter material
40. 40.⚖️ 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

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