Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 400 · 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 amount poured is kept the same. (a) False (b) True
2. 2.🫗 Which of these is done by evaporating? (a) salt from sea water (b) gravel from fine sand (c) tea leaves from tea (d) small stones from dal
3. 3.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) sugar from sugar water (c) salt from sea water (d) bad grains from rice
4. 4.⚖️ 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 same glass (c) the same muddy water (d) the filter material
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a magnet (d) a funnel
6. 6.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) handpicking (d) sieving
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) how clear the water is (d) the same glass
8. 8.🫗 How do we separate bad grains from rice? (a) winnowing (b) sieving (c) handpicking (d) filtering
9. 9.🫗 Which of these is done by winnowing? (a) small stones from dal (b) bran from wheat flour (c) husk from rice grain (d) tea leaves from tea
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
11. 11.True or false: a magnet is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) turmeric powder
13. 13.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
14. 14.🫗 How do we separate tea leaves from tea? (a) evaporating (b) winnowing (c) filtering (d) sieving
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a clean glass (d) a magnet
17. 17.⚖️ 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 change it (b) we measure it (c) we keep it the same
18. 18.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a mirror
21. 21.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ 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 glass
24. 24.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the water evaporates (d) the filter adds soap
25. 25.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) sand and pebbles (d) a balloon
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) the filter material (c) how clear the water is
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a clean glass (d) a funnel
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
29. 29.⚖️ 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 change it (c) we keep it the same
30. 30.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
31. 31.🫗 How do we separate salt from sea water? (a) handpicking (b) sieving (c) evaporating (d) filtering
32. 32.🫗 How do we separate husk from rice grain? (a) winnowing (b) evaporating (c) sieving (d) handpicking
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a magnet (d) muddy water
34. 34.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) turmeric powder (d) a balloon
36. 36.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
37. 37.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) lick your fingers (d) wash hands afterwards
38. 38.True or false: gravel from fine sand is done by winnowing. (a) True (b) False
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a balloon (d) a clean glass
40. 40.⚖️ 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

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