Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 943 · 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.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: gravel from fine sand is done by sieving. (a) False (b) True
3. 3.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) a funnel (d) cotton or cloth
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
6. 6.🛟 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
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 same muddy water
8. 8.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) winnowing (d) sieving
9. 9.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
10. 10.⚖️ 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) the same glass (c) how clear the water is
11. 11.🛟 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
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a funnel (c) a magnet (d) yeast
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) gravel from fine sand (d) chaff from wheat grain
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) turmeric powder (d) a battery cell
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) a funnel
23. 23.True or false: tea leaves from tea is done by filtering. (a) False (b) True
24. 24.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) leaves stay behind (d) both stay behind
25. 25.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) small stones from dal
26. 26.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) how clear the water is (c) the same glass (d) the same muddy water
28. 28.🫗 How do we separate sugar from sugar water? (a) handpicking (b) evaporating (c) winnowing (d) filtering
29. 29.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) clearer (c) muddier (d) hot
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
33. 33.True or false: small stones from dal is done by handpicking. (a) True (b) False
34. 34.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
35. 35.🧺 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) turmeric powder
36. 36.🫗 How do we separate gravel from fine sand? (a) winnowing (b) evaporating (c) sieving (d) handpicking
37. 37.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
39. 39.True or false: bran from wheat flour is done by sieving. (a) False (b) True
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False

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