Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 912 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
2. 2.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) winnowing (d) handpicking
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) sand and pebbles (d) turmeric powder
4. 4.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
5. 5.🧺 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 funnel (d) a magnet
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
7. 7.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) evaporating
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is sweet (d) clear water is salty
10. 10.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) a clean glass
12. 12.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a battery cell (d) a mirror
13. 13.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🫗 How do we separate tea leaves from tea? (a) sieving (b) handpicking (c) evaporating (d) filtering
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a battery cell (d) a funnel
17. 17.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
19. 19.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) salt from sea water (c) bad grains from rice (d) bran from wheat flour
20. 20.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) salt from sea water (c) husk from rice grain (d) mud from water
21. 21.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
22. 22.⚖️ 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
23. 23.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
24. 24.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
26. 26.⚖️ 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 same funnel (c) how clear the water is (d) the same muddy water
27. 27.⚖️ 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 muddy water (c) the amount poured (d) the filter material
28. 28.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) winnowing (d) handpicking
29. 29.True or false: sugar from sugar water is done by winnowing. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) cotton or cloth
31. 31.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
32. 32.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
33. 33.True or false: yeast is needed for the muddy water filter. (a) False (b) True
34. 34.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
35. 35.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
36. 36.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
37. 37.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
38. 38.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🫗 Which of these is done by winnowing? (a) salt from sea water (b) tea leaves from tea (c) chaff from wheat grain (d) gravel from fine sand

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