Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 342 · 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.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a magnet (d) cotton or cloth
2. 2.🫗 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
3. 3.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) yeast (c) a funnel (d) a clean glass
5. 5.⚖️ 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) True (b) False
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) False (b) True
8. 8.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bad grains from rice (c) bran from wheat flour (d) gravel from fine sand
9. 9.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) it turns to sand (d) yes, all of it
10. 10.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) a funnel (d) cotton or cloth
12. 12.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) yeast (c) a magnet (d) a battery cell
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) germs are invisible (d) clear water is hot
15. 15.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a clean glass (d) turmeric powder
16. 16.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
17. 17.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) husk from rice grain (d) small stones from dal
18. 18.⚖️ 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) False (b) True
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) muddy water (d) a clean glass
20. 20.🫗 How do we separate tea leaves from tea? (a) handpicking (b) sieving (c) filtering (d) winnowing
21. 21.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) handpicking (d) sieving
22. 22.🔮 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
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
26. 26.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
28. 28.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
29. 29.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
30. 30.True or false: bad grains from rice is done by handpicking. (a) True (b) False
31. 31.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) handpicking (d) evaporating
32. 32.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
33. 33.⚖️ 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 amount poured (c) the filter material (d) the same glass
34. 34.⚖️ 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
35. 35.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) salt from sea water (c) bran from wheat flour (d) tea leaves from tea
36. 36.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) sand and pebbles (c) a clean glass (d) a funnel
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
40. 40.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed

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