Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 950 · 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: small stones from dal is done by handpicking. (a) False (b) True
2. 2.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
3. 3.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
4. 4.⚖️ 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
5. 5.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
6. 6.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.⚖️ 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 same glass (c) the filter material (d) the amount poured
9. 9.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) filtering (d) sieving
10. 10.⚖️ 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 measure it (c) we change it
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
12. 12.⚖️ 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
13. 13.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
14. 14.🔮 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
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a funnel (d) turmeric powder
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) hot (d) muddier
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
18. 18.🛟 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
19. 19.🫗 How do we separate bran from wheat flour? (a) filtering (b) evaporating (c) handpicking (d) sieving
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) a magnet
23. 23.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
24. 24.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the water evaporates (d) the mud dissolves
25. 25.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a balloon (d) a mirror
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) yeast
28. 28.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) evaporating (d) winnowing
29. 29.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) husk from rice grain
31. 31.🫗 How do we separate gravel from fine sand? (a) sieving (b) filtering (c) winnowing (d) handpicking
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) a clean glass (d) muddy water
33. 33.🫗 Which of these is done by evaporating? (a) mud from water (b) chaff from wheat grain (c) sugar from sugar water (d) bad grains from rice
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) yeast (d) cotton or cloth
35. 35.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
37. 37.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
38. 38.True or false: husk from rice grain is done by winnowing. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it

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