Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 16 · 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.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
2. 2.True or false: husk from rice grain is done by winnowing. (a) True (b) False
3. 3.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) a clean glass (d) a battery cell
5. 5.🫗 How do we separate salt from sea water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
6. 6.🫗 How do we separate mud from water? (a) handpicking (b) filtering (c) winnowing (d) evaporating
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) turmeric powder
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) bad grains from rice
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
11. 11.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
12. 12.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a balloon (d) sand and pebbles
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
15. 15.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bran from wheat flour (c) salt from sea water (d) bad grains from rice
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) yeast (d) sand and pebbles
17. 17.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) sugar from sugar water (c) tea leaves from tea (d) bad grains from rice
18. 18.True or false: small stones from dal is done by handpicking. (a) True (b) False
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) a clean glass (d) turmeric powder
20. 20.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
22. 22.⚖️ 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 same funnel (c) how clear the water is
23. 23.⚖️ 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 same funnel (c) the same glass (d) how clear the water is
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) turmeric powder (d) a mirror
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) muddy water (d) a funnel
26. 26.🫗 How do we separate husk from rice grain? (a) filtering (b) winnowing (c) sieving (d) handpicking
27. 27.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
31. 31.🔮 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
32. 32.True or false: salt from sea water is done by handpicking. (a) True (b) False
33. 33.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) filtering (d) handpicking
34. 34.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
35. 35.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) sugar from sugar water (c) small stones from dal (d) chaff from wheat grain
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
37. 37.⚖️ 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
38. 38.🫗 Which of these is done by sieving? (a) bad grains from rice (b) mud from water (c) small stones from dal (d) bran from wheat flour
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.True or false: muddy water is needed for the muddy water filter. (a) False (b) True

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