Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 345 · 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.🛟 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
2. 2.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
3. 3.🫗 Which of these is done by handpicking? (a) salt from sea water (b) sugar from sugar water (c) mud from water (d) bad grains from rice
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 change it (c) we keep it the same
5. 5.🫗 How do we separate sugar from sugar water? (a) sieving (b) winnowing (c) evaporating (d) handpicking
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) turmeric powder
7. 7.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
8. 8.🔮 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
9. 9.🫗 How do we separate bad grains from rice? (a) evaporating (b) filtering (c) handpicking (d) sieving
10. 10.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) mud from water (c) husk from rice grain (d) sugar from sugar water
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🫗 How do we separate husk from rice grain? (a) winnowing (b) evaporating (c) handpicking (d) sieving
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) a clean glass
14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
15. 15.⚖️ 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) how clear the water is (c) the same funnel
16. 16.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
17. 17.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) germs are invisible (d) clear water is salty
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) tea stays behind (d) leaves stay behind
20. 20.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, always (d) yes, if it is clear
21. 21.🫗 How do we separate chaff from wheat grain? (a) sieving (b) winnowing (c) filtering (d) handpicking
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) yeast (c) muddy water (d) a balloon
23. 23.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it dissolves (d) it floats on top
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a mirror (d) sand and pebbles
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same glass (c) the same muddy water (d) how clear the water is
27. 27.⚖️ 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 amount poured
28. 28.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: gravel from fine sand is done by sieving. (a) False (b) True
30. 30.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a funnel (d) a battery cell
31. 31.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) tea leaves from tea (c) salt from sea water (d) mud from water
32. 32.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) a funnel (d) a clean glass
34. 34.⚖️ 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
35. 35.🫗 How do we separate salt from sea water? (a) evaporating (b) filtering (c) handpicking (d) winnowing
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a balloon (c) sand and pebbles (d) turmeric powder
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) muddy water (d) a battery cell
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 funnel (b) the same glass (c) the filter material (d) the amount poured
39. 39.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
40. 40.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) salt from sea water (d) chaff from wheat grain

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