Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 92 · 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.⚖️ 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
2. 2.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
3. 3.⚖️ 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
4. 4.🫗 How do we separate gravel from fine sand? (a) handpicking (b) filtering (c) sieving (d) evaporating
5. 5.True or false: husk from rice grain is done by sieving. (a) False (b) True
6. 6.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) muddy water (c) sand and pebbles (d) a funnel
7. 7.🫗 Which of these is done by filtering? (a) mud from water (b) husk from rice grain (c) sugar from sugar water (d) bad grains from rice
8. 8.⚖️ 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 same glass (d) the filter material
9. 9.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) tea leaves from tea (c) bran from wheat flour (d) salt from sea water
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) sand and pebbles (d) turmeric powder
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a magnet
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) yeast (d) a clean glass
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) yes, all of it (d) no, salt passes through
15. 15.⚖️ 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
16. 16.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is salty (d) clear water is hot
17. 17.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) winnowing (d) sieving
18. 18.🫗 How do we separate tea leaves from tea? (a) filtering (b) winnowing (c) handpicking (d) evaporating
19. 19.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
20. 20.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) False (b) True
22. 22.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) sieving (d) winnowing
23. 23.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) salt from sea water (c) bran from wheat flour (d) husk from rice grain
24. 24.🫗 How do we separate mud from water? (a) sieving (b) evaporating (c) filtering (d) handpicking
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same glass (c) the same muddy water (d) the same funnel
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a funnel (c) sand and pebbles (d) muddy water
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) sand and pebbles (d) turmeric powder
28. 28.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
29. 29.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) sand and pebbles (d) muddy water
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) cotton or cloth (c) sand and pebbles (d) a clean glass
32. 32.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) small stones from dal (c) sugar from sugar water (d) husk from rice grain
33. 33.⚖️ 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
34. 34.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
35. 35.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
36. 36.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a mirror (d) a clean glass
38. 38.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
39. 39.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
40. 40.🫗 How do we separate salt from sea water? (a) winnowing (b) evaporating (c) filtering (d) sieving

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