Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 217 · 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.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) both stay behind (c) leaves pass through (d) tea stays behind
2. 2.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) small stones from dal (c) tea leaves from tea (d) mud from water
3. 3.🫗 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
4. 4.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) yeast
6. 6.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a magnet
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
9. 9.True or false: mud from water is done by handpicking. (a) False (b) True
10. 10.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it sinks to the bottom (d) it turns to sand
11. 11.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) wash hands afterwards (d) nothing is needed
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🫗 How do we separate bad grains from rice? (a) winnowing (b) filtering (c) handpicking (d) sieving
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) cotton or cloth (d) a clean glass
15. 15.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) sugar from sugar water (c) husk from rice grain (d) salt from sea water
16. 16.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
17. 17.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a funnel (d) sand and pebbles
20. 20.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) a funnel (c) cotton or cloth (d) muddy water
23. 23.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a mirror (d) a funnel
25. 25.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
26. 26.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
27. 27.True or false: bad grains from rice is done by sieving. (a) False (b) True
28. 28.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) small stones from dal (c) gravel from fine sand (d) bad grains from rice
29. 29.⚖️ 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 muddy water (b) how clear the water is (c) the amount poured (d) the filter material
30. 30.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) a balloon (d) a magnet
31. 31.⚖️ 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
32. 32.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) turmeric powder
36. 36.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) salt from sea water (c) tea leaves from tea (d) chaff from wheat grain
37. 37.🫗 Which of these is done by filtering? (a) bad grains from rice (b) bran from wheat flour (c) tea leaves from tea (d) husk from rice grain
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) False (b) True
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 needed for the muddy water filter? (a) yeast (b) a mirror (c) muddy water (d) a battery cell

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