Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 884 · 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) sieving (b) handpicking (c) winnowing (d) filtering
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) a funnel
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
5. 5.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
6. 6.🫗 How do we separate gravel from fine sand? (a) winnowing (b) sieving (c) filtering (d) evaporating
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the same muddy water (d) the filter material
9. 9.🫗 Which of these is done by sieving? (a) mud from water (b) husk from rice grain (c) bran from wheat flour (d) bad grains from rice
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 filter material (c) the same muddy water
11. 11.🫗 Which of these is done by sieving? (a) small stones from dal (b) tea leaves from tea (c) husk from rice grain (d) gravel from fine sand
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a magnet (d) cotton or cloth
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a funnel (c) a clean glass (d) cotton or cloth
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) a balloon (d) muddy water
15. 15.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
16. 16.⚖️ 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
17. 17.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
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) the filter material (b) the same funnel (c) the same muddy water (d) the same glass
20. 20.True or false: bad grains from rice is done by sieving. (a) True (b) False
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) a clean glass (d) a mirror
23. 23.True or false: bran from wheat flour is done by sieving. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) turmeric powder (d) sand and pebbles
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) yeast (c) cotton or cloth (d) sand and pebbles
26. 26.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) muddy water (d) a battery cell
27. 27.⚖️ 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
28. 28.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a battery cell (d) muddy water
31. 31.⚖️ 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
32. 32.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
33. 33.🫗 How do we separate husk from rice grain? (a) sieving (b) evaporating (c) handpicking (d) winnowing
34. 34.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
35. 35.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
36. 36.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
37. 37.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) winnowing (c) handpicking (d) sieving
38. 38.⚖️ 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 amount poured
39. 39.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) bran from wheat flour (c) tea leaves from tea (d) bad grains from rice
40. 40.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud

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