Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 802 · 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.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) turmeric powder (d) a clean glass
2. 2.True or false: chaff from wheat grain is done by handpicking. (a) False (b) True
3. 3.⚖️ 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) the filter material (c) the same funnel (d) how clear the water is
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) it turns to sand (d) no, salt passes through
5. 5.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) muddy water (d) a funnel
8. 8.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
9. 9.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
12. 12.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) bad grains from rice (d) salt from sea water
13. 13.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) hot (d) salty
14. 14.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
15. 15.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (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 same glass”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) husk from rice grain (d) salt from sea 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 keep it the same (c) we change it
20. 20.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) cotton or cloth (d) a magnet
22. 22.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
23. 23.True or false: mud from water is done by winnowing. (a) True (b) False
24. 24.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) handpicking (d) winnowing
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) the same funnel (b) the amount poured (c) the filter material (d) how clear the water is
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) yeast
28. 28.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
30. 30.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) chaff from wheat grain (d) sugar from sugar water
31. 31.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it floats on top (d) it turns to sand
32. 32.⚖️ 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 same funnel (c) how clear the water is
33. 33.⚖️ 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 muddy water
34. 34.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
35. 35.True or false: bad grains from rice is done by filtering. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a funnel (d) sand and pebbles
37. 37.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False

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