Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 616 · 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? True or false: the filter material is the one thing we change. (a) True (b) False
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a clean glass (d) cotton or cloth
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) tea stays behind (d) leaves pass through
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) salty (d) muddier
6. 6.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) mud from water (c) sugar from sugar water (d) gravel from fine sand
7. 7.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) winnowing (c) sieving (d) filtering
8. 8.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) winnowing (d) sieving
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a funnel (d) a magnet
10. 10.⚖️ 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 same muddy water (c) the filter material
11. 11.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
14. 14.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
15. 15.⚖️ 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) False (b) True
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
17. 17.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) salt from sea water (c) bran from wheat flour (d) chaff from wheat grain
18. 18.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) cotton or cloth (d) a balloon
19. 19.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a clean glass (c) muddy water (d) a funnel
21. 21.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
22. 22.⚖️ 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
23. 23.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
24. 24.🫗 Which of these is done by filtering? (a) mud from water (b) bad grains from rice (c) sugar from sugar water (d) salt from sea water
25. 25.True or false: husk from rice grain is done by winnowing. (a) False (b) True
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) turmeric powder (d) a battery cell
27. 27.True or false: small stones from dal is done by handpicking. (a) False (b) True
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
29. 29.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) small stones from dal (c) husk from rice grain (d) bad grains from rice
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) muddy water (d) a funnel
35. 35.⚖️ 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 same muddy water (c) the same glass (d) the amount poured
36. 36.⚖️ 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) False (b) True
37. 37.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) evaporating (d) handpicking
38. 38.⚖️ 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 glass (b) the filter material (c) how clear the water is (d) the amount poured
39. 39.True or false: bad grains from rice is done by handpicking. (a) False (b) True
40. 40.True or false: bad grains from rice is done by filtering. (a) True (b) False

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