Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 280 · 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: sugar from sugar water is done by evaporating. (a) False (b) True
2. 2.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) handpicking (d) winnowing
3. 3.True or false: small stones from dal is done by sieving. (a) True (b) False
4. 4.⚖️ 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
5. 5.⚖️ 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 glass
6. 6.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
7. 7.⚖️ 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 amount poured
8. 8.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
9. 9.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
10. 10.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
11. 11.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
12. 12.⚖️ 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 funnel (c) how clear the water is (d) the same muddy water
13. 13.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a mirror (d) a funnel
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🫗 Which of these is done by handpicking? (a) small stones from dal (b) salt from sea water (c) mud from water (d) chaff from wheat grain
17. 17.⚖️ 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 same glass (d) the filter material
18. 18.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) yeast (d) a battery cell
19. 19.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) chaff from wheat grain (c) gravel from fine sand (d) husk from rice grain
20. 20.True or false: sugar from sugar water is done by sieving. (a) True (b) False
21. 21.🫗 How do we separate small stones from dal? (a) evaporating (b) sieving (c) handpicking (d) filtering
22. 22.🫗 Which of these is done by sieving? (a) husk from rice grain (b) bad grains from rice (c) gravel from fine sand (d) chaff from wheat grain
23. 23.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) winnowing (d) handpicking
24. 24.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) muddy water (d) a funnel
26. 26.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
27. 27.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
28. 28.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a battery cell (d) sand and pebbles
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) muddy water (d) a clean glass
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) turmeric powder
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a battery cell (d) a magnet
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
37. 37.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
38. 38.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
39. 39.🧺 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) a battery cell
40. 40.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud

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