Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 189 · 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 a balloon for the muddy water filter? (a) needed (b) not needed
2. 2.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a balloon (d) yeast
4. 4.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) handpicking (d) evaporating
5. 5.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
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 filter material (b) the amount poured (c) the same glass (d) the same muddy water
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.⚖️ 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 funnel
9. 9.🔍 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
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) False (b) True
11. 11.⚖️ 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
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves pass through (d) leaves stay behind
13. 13.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
14. 14.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
15. 15.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) clear water is salty (d) germs are invisible
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) turmeric powder
17. 17.⚖️ 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) True (b) False
18. 18.🫗 How do we separate tea leaves from tea? (a) winnowing (b) sieving (c) filtering (d) handpicking
19. 19.⚖️ 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
20. 20.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) handpicking (d) sieving
22. 22.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
25. 25.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) mud from water (c) husk from rice grain (d) chaff from wheat grain
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) muddy water (d) a battery cell
27. 27.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True
28. 28.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) sand and pebbles (c) a battery cell (d) a magnet
29. 29.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
30. 30.🔮 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
31. 31.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
33. 33.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a balloon
35. 35.🫗 How do we separate mud from water? (a) winnowing (b) sieving (c) filtering (d) handpicking
36. 36.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
37. 37.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) lick your fingers (d) wash hands afterwards
38. 38.True or false: chaff from wheat grain is done by evaporating. (a) False (b) True
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) cotton or cloth (d) a funnel
40. 40.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bran from wheat flour (c) salt from sea water (d) mud from water

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