Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 612 · 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? Which of these is the one thing we change? (a) the same funnel (b) the filter material (c) the amount poured (d) the same glass
2. 2.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) turmeric powder (c) a funnel (d) sand and pebbles
4. 4.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) sieving (d) filtering
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) sand and pebbles (d) a balloon
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
7. 7.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) winnowing
8. 8.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) mud from water (c) small stones from dal (d) bad grains from rice
9. 9.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
10. 10.🫗 How do we separate husk from rice grain? (a) evaporating (b) sieving (c) filtering (d) winnowing
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same muddy water (c) how clear the water is (d) the amount poured
12. 12.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) salt from sea water (c) chaff from wheat grain (d) bad grains from rice
13. 13.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
14. 14.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) sieving (d) evaporating
15. 15.True or false: yeast is needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ 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
17. 17.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
18. 18.🫗 How do we separate sugar from sugar water? (a) winnowing (b) evaporating (c) filtering (d) handpicking
19. 19.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) evaporating
20. 20.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) muddy water (d) turmeric powder
22. 22.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a battery cell (d) cotton or cloth
24. 24.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ 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) False (b) True
27. 27.⚖️ 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 funnel
28. 28.🧺 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) a funnel
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) yeast (d) a balloon
30. 30.⚖️ 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) True (b) False
31. 31.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
32. 32.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) bran from wheat flour
33. 33.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) sieving (d) handpicking
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 filter material (c) the same muddy water
35. 35.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
36. 36.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
37. 37.True or false: gravel from fine sand is done by sieving. (a) False (b) True
38. 38.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) bad grains from rice (c) bran from wheat flour (d) small stones from dal
39. 39.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) it turns to sand (d) no, salt passes through
40. 40.⚖️ 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

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