Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 423 · 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.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) evaporating (d) handpicking
2. 2.True or false: bad grains from rice is done by handpicking. (a) False (b) True
3. 3.⚖️ 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 filter material (c) the same muddy water (d) the amount poured
4. 4.⚖️ 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) False (b) True
5. 5.True or false: yeast is needed for the muddy water filter. (a) True (b) False
6. 6.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) bran from wheat flour
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
8. 8.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a clean glass (c) turmeric powder (d) a magnet
9. 9.⚖️ 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
10. 10.True or false: small stones from dal is done by winnowing. (a) False (b) True
11. 11.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) small stones from dal (c) mud from water (d) husk from rice grain
12. 12.⚖️ 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) False (b) True
13. 13.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the mud dissolves (d) the filter adds soap
14. 14.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
15. 15.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
16. 16.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
17. 17.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
19. 19.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
20. 20.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) sugar from sugar water (d) mud from water
21. 21.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
22. 22.True or false: bad grains from rice is done by evaporating. (a) False (b) True
23. 23.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) tea leaves from tea (d) husk from rice grain
24. 24.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a funnel (c) a mirror (d) a balloon
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) cotton or cloth (d) muddy water
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) sieving (d) handpicking
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a magnet (c) a mirror (d) muddy water
31. 31.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
32. 32.True or false: husk from rice grain is done by winnowing. (a) False (b) True
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) sand and pebbles (c) muddy water (d) a clean glass
34. 34.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a balloon (d) yeast
35. 35.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
36. 36.True or false: husk from rice grain is done by handpicking. (a) False (b) True
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) muddy water (d) a mirror
38. 38.⚖️ 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 glass
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) muddy water (d) a funnel
40. 40.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) sieving (d) winnowing

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