Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 484 · 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: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) no, salt passes through (c) it turns to sugar (d) it turns to sand
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the filter material (c) the same muddy water (d) how clear the water is
3. 3.True or false: bran from wheat flour is done by sieving. (a) True (b) False
4. 4.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
5. 5.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
6. 6.True or false: sugar from sugar water is done by filtering. (a) False (b) True
7. 7.🔍 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
8. 8.🫗 Which of these is done by filtering? (a) small stones from dal (b) tea leaves from tea (c) bad grains from rice (d) bran from wheat flour
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) turmeric powder (d) sand and pebbles
10. 10.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a magnet
12. 12.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) winnowing (d) handpicking
13. 13.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ 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 amount poured
15. 15.🫗 How do we separate bad grains from rice? (a) sieving (b) evaporating (c) handpicking (d) winnowing
16. 16.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) False (b) True
18. 18.🫗 Which of these is done by winnowing? (a) small stones from dal (b) sugar from sugar water (c) chaff from wheat grain (d) tea leaves from tea
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the water evaporates (c) the mud dissolves (d) the filter adds soap
21. 21.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) sand and pebbles (d) muddy water
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) muddy water (d) cotton or cloth
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a magnet (d) cotton or cloth
26. 26.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) tea leaves from tea (c) husk from rice grain (d) bad grains from rice
27. 27.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) chaff from wheat grain (c) salt from sea water (d) gravel from fine sand
28. 28.True or false: chaff from wheat grain is done by sieving. (a) False (b) True
29. 29.⚖️ 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
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
31. 31.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) muddy water (c) a funnel (d) sand and pebbles
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a balloon
35. 35.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) mud from water (c) tea leaves from tea (d) salt from sea water
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) muddy water (d) cotton or cloth
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.True or false: sugar from sugar water is done by winnowing. (a) True (b) False

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