Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 673 · 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.🔮 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
2. 2.⚖️ 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 glass (c) the amount poured (d) the same funnel
3. 3.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a mirror (d) a funnel
4. 4.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
5. 5.⚖️ 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 amount poured (c) the same glass (d) the filter material
6. 6.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
7. 7.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a battery cell (d) a clean glass
9. 9.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) muddier (d) hot
11. 11.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) husk from rice grain (d) salt from sea water
12. 12.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
13. 13.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a magnet
15. 15.🫗 How do we separate chaff from wheat grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
16. 16.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) small stones from dal (c) gravel from fine sand (d) mud from water
17. 17.⚖️ 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
18. 18.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) yeast (c) a battery cell (d) a clean glass
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
23. 23.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) winnowing (d) evaporating
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) muddy water (c) yeast (d) sand and pebbles
25. 25.🫗 How do we separate gravel from fine sand? (a) winnowing (b) handpicking (c) sieving (d) filtering
26. 26.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) winnowing (d) evaporating
27. 27.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
29. 29.🫗 How do we separate mud from water? (a) filtering (b) evaporating (c) winnowing (d) handpicking
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
34. 34.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
37. 37.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: sugar from sugar water is done by evaporating. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) sand and pebbles (c) a funnel (d) cotton or cloth

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