Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 573 · 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.🫗 How do we separate bad grains from rice? (a) evaporating (b) handpicking (c) filtering (d) winnowing
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
3. 3.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) sieving (d) evaporating
4. 4.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) mud from water (c) salt from sea water (d) chaff from wheat grain
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) cotton or cloth
8. 8.🫗 Which of these is done by evaporating? (a) small stones from dal (b) chaff from wheat grain (c) husk from rice grain (d) salt from sea water
9. 9.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) clear water is sweet (d) germs are invisible
11. 11.True or false: mud from water is done by filtering. (a) True (b) False
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a mirror (c) a magnet (d) turmeric powder
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a mirror (c) a funnel (d) cotton or cloth
15. 15.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) a balloon (d) a funnel
17. 17.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it sinks to the bottom (d) it floats on top
18. 18.⚖️ 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 muddy water (b) the amount poured (c) the filter material (d) the same glass
19. 19.True or false: bad grains from rice is done by winnowing. (a) False (b) True
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a funnel (d) a balloon
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a battery cell (d) sand and pebbles
22. 22.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
23. 23.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
24. 24.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) a magnet (d) a balloon
26. 26.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.⚖️ 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 glass (c) how clear the water is (d) the same funnel
30. 30.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
31. 31.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
32. 32.⚖️ 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
33. 33.⚖️ 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
34. 34.⚖️ 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) False (b) True
35. 35.🫗 How do we separate sugar from sugar water? (a) evaporating (b) filtering (c) winnowing (d) sieving
36. 36.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
37. 37.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
38. 38.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) filtering (d) winnowing

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