Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 734 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
3. 3.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) bad grains from rice (c) husk from rice grain (d) salt from sea water
4. 4.⚖️ 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 muddy water (c) the same funnel (d) the amount poured
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) yeast
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a battery cell (d) a clean glass
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.🫗 How do we separate sugar from sugar water? (a) sieving (b) filtering (c) handpicking (d) evaporating
9. 9.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
10. 10.⚖️ 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
11. 11.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) sieving (d) handpicking
12. 12.True or false: sugar from sugar water is done by sieving. (a) False (b) True
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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
15. 15.⚖️ 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 change it (c) we measure it
16. 16.🛟 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
17. 17.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
18. 18.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
19. 19.True or false: husk from rice grain is done by handpicking. (a) True (b) False
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) muddy water
22. 22.⚖️ 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
23. 23.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter traps mud (d) the filter adds soap
24. 24.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) filtering (d) handpicking
25. 25.⚖️ 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 muddy water
26. 26.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) husk from rice grain (d) bad grains from rice
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
28. 28.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
30. 30.True or false: small stones from dal is done by sieving. (a) True (b) False
31. 31.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) mud from water (c) small stones from dal (d) chaff from wheat grain
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) sand and pebbles
33. 33.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) chaff from wheat grain (d) bran from wheat flour
34. 34.⚖️ 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 amount poured (c) the filter material
35. 35.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) sieving (d) handpicking
37. 37.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
38. 38.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a battery cell
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a magnet (d) a battery cell

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