Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 736 · 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 handpicking. (a) True (b) False
2. 2.⚖️ 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
3. 3.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves stay behind (c) leaves pass through (d) both stay behind
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same funnel (c) how clear the water is (d) the same muddy water
5. 5.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) it turns to sugar (d) no, salt passes through
6. 6.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
7. 7.🫗 Which of these is done by winnowing? (a) salt from sea water (b) gravel from fine sand (c) chaff from wheat grain (d) bad grains from rice
8. 8.🫗 How do we separate sugar from sugar water? (a) sieving (b) winnowing (c) evaporating (d) filtering
9. 9.True or false: mud from water is done by filtering. (a) False (b) True
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it floats on top (d) it turns to sand
11. 11.🫗 Which of these is done by filtering? (a) small stones from dal (b) tea leaves from tea (c) sugar from sugar water (d) bad grains from rice
12. 12.🫗 How do we separate small stones from dal? (a) winnowing (b) handpicking (c) filtering (d) evaporating
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
14. 14.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
17. 17.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) filtering (d) sieving
18. 18.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
19. 19.⚖️ 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 glass
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) turmeric powder (d) muddy water
21. 21.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
22. 22.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bad grains from rice (c) bran from wheat flour (d) husk from rice grain
23. 23.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
24. 24.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
25. 25.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) sand and pebbles (d) a balloon
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) muddy water (d) cotton or cloth
29. 29.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
30. 30.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) bad grains from rice (c) husk from rice grain (d) gravel from fine sand
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
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.🧺 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) a battery cell
34. 34.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
35. 35.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the mud (d) the water
36. 36.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
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.⚖️ 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
40. 40.True or false: mud from water is done by handpicking. (a) False (b) True

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