Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 373 · 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.True or false: salt from sea water is done by winnowing. (a) True (b) False
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same glass (d) the amount poured
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a magnet (c) turmeric powder (d) yeast
5. 5.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
6. 6.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
7. 7.⚖️ 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) True (b) False
8. 8.True or false: mud from water is done by handpicking. (a) True (b) False
9. 9.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
10. 10.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
11. 11.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a magnet
13. 13.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
14. 14.⚖️ 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 filter material (c) how clear the water is (d) the same glass
15. 15.🫗 How do we separate salt from sea water? (a) winnowing (b) sieving (c) handpicking (d) evaporating
16. 16.True or false: salt from sea water is done by evaporating. (a) False (b) True
17. 17.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) muddier (d) clearer
19. 19.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) muddy water (d) a magnet
20. 20.🫗 How do we separate mud from water? (a) winnowing (b) filtering (c) handpicking (d) sieving
21. 21.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
22. 22.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) handpicking (d) filtering
23. 23.🫗 Which of these is done by filtering? (a) small stones from dal (b) bran from wheat flour (c) tea leaves from tea (d) chaff from wheat grain
24. 24.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
25. 25.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
28. 28.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
29. 29.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) mud from water (c) small stones from dal (d) salt from sea water
30. 30.⚖️ 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
31. 31.🫗 How do we separate bad grains from rice? (a) filtering (b) evaporating (c) sieving (d) handpicking
32. 32.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter traps mud (c) the filter adds soap (d) the mud dissolves
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a battery cell
34. 34.⚖️ 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
35. 35.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) sand and pebbles (d) a clean glass
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.⚖️ 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) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
40. 40.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False

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