Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 234 · 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.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) muddy water (d) turmeric powder
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 keep it the same (b) we change it (c) we measure it
3. 3.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) bad grains from rice (c) salt from sea water (d) bran from wheat flour
4. 4.⚖️ 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 amount poured (c) the filter material (d) the same muddy water
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a battery cell (d) muddy water
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) no, germs may stay (d) yes, always
8. 8.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
10. 10.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
11. 11.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) gravel from fine sand (c) chaff from wheat grain (d) sugar from sugar water
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
13. 13.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) gravel from fine sand (c) bran from wheat flour (d) mud from water
14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a magnet (d) sand and pebbles
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) muddy water (d) a magnet
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True
19. 19.⚖️ 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
20. 20.🫗 How do we separate husk from rice grain? (a) handpicking (b) sieving (c) winnowing (d) evaporating
21. 21.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
22. 22.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
23. 23.True or false: mud from water is done by filtering. (a) False (b) True
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
25. 25.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
26. 26.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
27. 27.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) tea leaves from tea (c) small stones from dal (d) mud from water
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a clean glass (c) a battery cell (d) cotton or cloth
29. 29.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) chaff from wheat grain (c) husk from rice grain (d) gravel from fine sand
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) turmeric powder (c) a funnel (d) muddy water
32. 32.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
33. 33.🫗 Which of these is done by sieving? (a) mud from water (b) bad grains from rice (c) bran from wheat flour (d) chaff from wheat grain
34. 34.🫗 How do we separate bad grains from rice? (a) handpicking (b) sieving (c) filtering (d) evaporating
35. 35.🧺 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 mirror (d) muddy water
36. 36.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) gravel from fine sand (c) chaff from wheat grain (d) salt from sea water
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a funnel (c) a mirror (d) muddy water
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
39. 39.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the amount poured (c) the same funnel (d) the same glass

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