Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 841 · 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.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
2. 2.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) chaff from wheat grain (c) bad grains from rice (d) husk from rice grain
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) cotton or cloth (d) yeast
4. 4.⚖️ 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) how clear the water is (d) the same glass
5. 5.🔍 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
6. 6.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) winnowing (d) evaporating
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a clean glass (d) a balloon
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
9. 9.⚖️ 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
10. 10.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
11. 11.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a magnet
13. 13.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
14. 14.True or false: husk from rice grain is done by winnowing. (a) True (b) False
15. 15.⚖️ 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
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a magnet (d) cotton or cloth
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is sweet (d) clear water is hot
19. 19.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) tea leaves from tea (c) salt from sea water (d) bran from wheat flour
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) a clean glass
21. 21.🫗 How do we separate small stones from dal? (a) filtering (b) winnowing (c) sieving (d) handpicking
22. 22.⚖️ 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 measure it (c) we change it
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) turmeric powder (d) a funnel
24. 24.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
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 funnel
26. 26.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) sieving (d) filtering
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
28. 28.⚖️ 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 change it (c) we measure it
29. 29.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
31. 31.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
33. 33.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
34. 34.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) salt from sea water (c) mud from water (d) tea leaves from tea
35. 35.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) sugar from sugar water (c) small stones from dal (d) salt from sea water
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a battery cell (d) a clean glass
38. 38.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False

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