Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 883 · 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 amount poured (b) how clear the water is (c) the filter material (d) the same glass
2. 2.True or false: bad grains from rice is done by evaporating. (a) False (b) True
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a mirror
4. 4.🫗 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
5. 5.True or false: husk from rice grain is done by handpicking. (a) False (b) True
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) germs are invisible (d) clear water is sweet
7. 7.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
8. 8.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
9. 9.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) a magnet (d) a balloon
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a battery cell (d) cotton or cloth
11. 11.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) a funnel (d) sand and pebbles
13. 13.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) bran from wheat flour (c) bad grains from rice (d) small stones from dal
14. 14.⚖️ 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
15. 15.⚖️ 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 funnel (d) the amount poured
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) muddy water (d) a funnel
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) yeast
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
19. 19.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) evaporating
20. 20.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) husk from rice grain (c) salt from sea water (d) gravel from fine sand
21. 21.True or false: tea leaves from tea is done by handpicking. (a) True (b) False
22. 22.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 How do we separate bran from wheat flour? (a) evaporating (b) filtering (c) handpicking (d) sieving
24. 24.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) sieving (d) filtering
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel 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: the same muddy water is kept the same. (a) True (b) False
27. 27.True or false: husk from rice grain is done by winnowing. (a) True (b) False
28. 28.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sand (d) it turns to sugar
29. 29.⚖️ 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
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) bran from wheat flour (d) small stones from dal
32. 32.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
34. 34.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) cotton or cloth (d) muddy water
36. 36.⚖️ 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 measure it (c) we change it
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 keep it the same (b) we change it (c) we measure it
38. 38.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) bad grains from rice (c) chaff from wheat grain (d) bran from wheat flour
39. 39.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
40. 40.🫗 Which of these is done by filtering? (a) salt from sea water (b) chaff from wheat grain (c) mud from water (d) gravel from fine sand

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