Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 546 · 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: chaff from wheat grain is done by sieving. (a) True (b) False
2. 2.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) cotton or cloth (d) turmeric powder
5. 5.⚖️ 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
6. 6.🫗 How do we separate chaff from wheat grain? (a) filtering (b) evaporating (c) winnowing (d) sieving
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) cotton or cloth (d) a magnet
8. 8.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) sand and pebbles (d) a mirror
10. 10.⚖️ 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 amount poured (c) the filter material
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
12. 12.True or false: small stones from dal is done by handpicking. (a) True (b) False
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a battery cell
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the filter material (c) how clear the water is (d) the amount poured
15. 15.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
16. 16.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
19. 19.🔮 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
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
21. 21.🫗 How do we separate bad grains from rice? (a) handpicking (b) evaporating (c) filtering (d) sieving
22. 22.True or false: bran from wheat flour is done by sieving. (a) False (b) True
23. 23.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
24. 24.⚖️ 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 same muddy water
25. 25.⚖️ 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 filter material (d) the same muddy water
26. 26.🧺 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
27. 27.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
29. 29.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) tea leaves from tea (c) mud from water (d) small stones from dal
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
31. 31.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
32. 32.🫗 How do we separate bran from wheat flour? (a) sieving (b) evaporating (c) winnowing (d) filtering
33. 33.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
34. 34.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
35. 35.🫗 How do we separate gravel from fine sand? (a) sieving (b) winnowing (c) evaporating (d) filtering
36. 36.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) tea leaves from tea (c) bad grains from rice (d) chaff from wheat grain
37. 37.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
38. 38.⚖️ 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) True (b) False
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
40. 40.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed

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