Separating Mixtures Experiment Worksheet

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

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