Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 838 · 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 sand (d) it turns to sugar
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a mirror (c) sand and pebbles (d) a battery cell
4. 4.True or false: mud from water is done by filtering. (a) False (b) True
5. 5.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
6. 6.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the mud (d) the salt
7. 7.⚖️ 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
8. 8.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
9. 9.True or false: yeast is needed for the muddy water filter. (a) False (b) True
10. 10.🫗 How do we separate small stones from dal? (a) handpicking (b) winnowing (c) sieving (d) evaporating
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.True or false: mud from water is done by evaporating. (a) False (b) True
14. 14.🫗 How do we separate salt from sea water? (a) sieving (b) evaporating (c) filtering (d) winnowing
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same funnel (c) the same muddy water (d) how clear the water is
18. 18.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
19. 19.⚖️ 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 glass (b) how clear the water is (c) the same muddy water (d) the filter material
20. 20.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
21. 21.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) small stones from dal (c) chaff from wheat grain (d) mud from water
22. 22.🫗 How do we separate sugar from sugar water? (a) evaporating (b) winnowing (c) sieving (d) filtering
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a balloon (d) a funnel
25. 25.⚖️ 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) False (b) True
26. 26.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wipe hands on face (c) nothing is needed (d) wash hands afterwards
27. 27.⚖️ 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 keep it the same (b) we measure it (c) we change it
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a magnet (d) a funnel
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) muddy water (d) a clean glass
30. 30.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a balloon (c) a funnel (d) sand and pebbles
32. 32.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
33. 33.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
34. 34.⚖️ 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 same muddy water (c) how clear the water is
35. 35.🫗 How do we separate mud from water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
36. 36.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) handpicking (d) evaporating
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) yeast
38. 38.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) tea leaves from tea (c) husk from rice grain (d) bad grains from rice
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
40. 40.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold

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