Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 555 · 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.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
3. 3.True or false: chaff from wheat grain is done by evaporating. (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) salty (c) muddier (d) hot
5. 5.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) muddy water (c) a battery cell (d) yeast
6. 6.⚖️ 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
7. 7.True or false: mud from water is done by filtering. (a) True (b) False
8. 8.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) sieving (d) handpicking
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
10. 10.⚖️ 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 funnel (b) the filter material (c) the same glass (d) the same muddy water
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) nothing (d) the water
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a mirror (d) a funnel
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) sand and pebbles (d) muddy water
15. 15.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
16. 16.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
17. 17.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same muddy water (c) the amount poured (d) the same funnel
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) sieving (d) handpicking
22. 22.True or false: gravel from fine sand is done by evaporating. (a) True (b) False
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.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, always (c) no, germs may stay (d) yes, if it is clear
25. 25.⚖️ 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
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) tea stays behind (d) leaves pass through
27. 27.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a funnel (d) yeast
28. 28.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
29. 29.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) no, salt passes through (c) yes, all of it (d) it turns to sand
30. 30.⚖️ 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) how clear the water is (c) the filter material
31. 31.⚖️ 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 change it (c) we measure it
32. 32.🫗 How do we separate tea leaves from tea? (a) filtering (b) handpicking (c) winnowing (d) sieving
33. 33.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a battery cell (d) a clean glass
35. 35.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
36. 36.🫗 How do we separate small stones from dal? (a) evaporating (b) filtering (c) handpicking (d) sieving
37. 37.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
38. 38.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
39. 39.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True

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