Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 695 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
3. 3.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
4. 4.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) sand and pebbles (d) muddy water
8. 8.🛟 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
9. 9.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
10. 10.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the mud dissolves (d) the filter traps mud
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) a battery cell
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) turmeric powder (c) cotton or cloth (d) a clean glass
14. 14.🫗 How do we separate gravel from fine sand? (a) evaporating (b) handpicking (c) winnowing (d) sieving
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a mirror (c) muddy water (d) a clean glass
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is cold (d) yes, if it is clear
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the amount poured
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it sinks to the bottom (d) it floats on top
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.⚖️ 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 glass
22. 22.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) small stones from dal (c) sugar from sugar water (d) gravel from fine sand
23. 23.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
24. 24.⚖️ 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) the amount poured (c) how clear the water is
25. 25.🫗 Which of these is done by evaporating? (a) sugar from sugar water (b) bran from wheat flour (c) bad grains from rice (d) tea leaves from tea
26. 26.True or false: a clean glass is needed for the muddy water filter. (a) True (b) False
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) a mirror (b) muddy water (c) a clean glass (d) a funnel
29. 29.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a balloon (d) a clean glass
31. 31.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) cotton or cloth (d) a clean glass
33. 33.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) nothing (d) the salt
35. 35.⚖️ 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 same muddy water (c) the same funnel (d) the filter material
36. 36.⚖️ 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
37. 37.🫗 How do we separate tea leaves from tea? (a) winnowing (b) handpicking (c) sieving (d) filtering
38. 38.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) filtering (d) sieving
39. 39.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a mirror (c) yeast (d) a balloon
40. 40.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True

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