Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 947 · 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.🫗 How do we separate small stones from dal? (a) evaporating (b) filtering (c) handpicking (d) sieving
2. 2.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the filter adds soap (d) the mud dissolves
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) a funnel (d) muddy water
4. 4.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
5. 5.True or false: salt from sea water is done by sieving. (a) True (b) False
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
7. 7.⚖️ 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
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
9. 9.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
10. 10.⚖️ 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 filter material (c) the same glass (d) the same muddy water
11. 11.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) chaff from wheat grain (c) tea leaves from tea (d) bran from wheat flour
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) turmeric powder (c) a funnel (d) a battery cell
13. 13.True or false: mud from water is done by sieving. (a) False (b) True
14. 14.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
15. 15.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) sand and pebbles (d) turmeric powder
16. 16.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
17. 17.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Which of these is done by handpicking? (a) salt from sea water (b) gravel from fine sand (c) sugar from sugar water (d) bad grains from rice
21. 21.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) the filter material (c) how clear the water is
23. 23.True or false: salt from sea water is done by winnowing. (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) how clear the water is (b) the filter material (c) the same glass
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a clean glass (c) cotton or cloth (d) sand and pebbles
26. 26.⚖️ 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) the amount poured (c) how clear the water is
27. 27.⚖️ 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) how clear the water is (c) the filter material (d) the same funnel
28. 28.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a magnet (d) sand and pebbles
30. 30.True or false: sugar from sugar water is done by filtering. (a) True (b) False
31. 31.True or false: bad grains from rice is done by handpicking. (a) True (b) False
32. 32.⚖️ 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
33. 33.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
34. 34.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) small stones from dal (c) bran from wheat flour (d) husk from rice grain
35. 35.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
37. 37.🫗 How do we separate sugar from sugar water? (a) winnowing (b) evaporating (c) sieving (d) handpicking
38. 38.🫗 How do we separate salt from sea water? (a) sieving (b) winnowing (c) evaporating (d) handpicking
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
40. 40.True or false: bran from wheat flour is done by handpicking. (a) True (b) False

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