Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 779 · 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? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) chaff from wheat grain
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) cotton or cloth (d) sand and pebbles
5. 5.⚖️ 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 amount poured
6. 6.True or false: mud from water is done by winnowing. (a) False (b) True
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the filter material (d) the same muddy water
9. 9.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) sieving (d) winnowing
10. 10.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same muddy water
12. 12.🔮 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
13. 13.🫗 How do we separate bad grains from rice? (a) sieving (b) winnowing (c) handpicking (d) filtering
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) a funnel (d) cotton or cloth
15. 15.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
16. 16.🫗 Which of these is done by sieving? (a) husk from rice grain (b) bran from wheat flour (c) salt from sea water (d) mud from water
17. 17.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) filtering (d) winnowing
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) turmeric powder (d) a clean glass
19. 19.🧺 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 balloon
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
21. 21.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
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) True (b) False
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
24. 24.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) mud from water (c) salt from sea water (d) husk from rice grain
25. 25.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a magnet (d) a mirror
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
28. 28.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it dissolves (d) it turns to sand
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
30. 30.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
31. 31.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
32. 32.True or false: yeast is needed for the muddy water filter. (a) True (b) False
33. 33.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
34. 34.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) nothing is needed (d) wipe hands on face
35. 35.True or false: bad grains from rice is done by handpicking. (a) False (b) True
36. 36.🫗 Which of these is done by filtering? (a) husk from rice grain (b) gravel from fine sand (c) sugar from sugar water (d) tea leaves from tea
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
40. 40.True or false: mud from water is done by handpicking. (a) True (b) False

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