Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 268 · 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? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) how clear the water is (d) the filter material
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) yeast (d) a mirror
3. 3.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a mirror
4. 4.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
5. 5.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
7. 7.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it dissolves (c) it turns to sand (d) it floats on top
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) a battery cell (d) cotton or cloth
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) how clear the water is
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) cotton or cloth (d) turmeric powder
13. 13.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a funnel (d) muddy water
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) turmeric powder
16. 16.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a mirror (c) a battery cell (d) a clean glass
17. 17.⚖️ 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
18. 18.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
19. 19.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) husk from rice grain (c) small stones from dal (d) mud from water
21. 21.⚖️ 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) True (b) False
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) yeast (d) a clean glass
23. 23.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
24. 24.True or false: mud from water is done by filtering. (a) False (b) True
25. 25.🫗 How do we separate gravel from fine sand? (a) winnowing (b) evaporating (c) handpicking (d) sieving
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
27. 27.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a magnet (d) a funnel
28. 28.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
29. 29.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) filtering (d) evaporating
31. 31.⚖️ 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
32. 32.🫗 How do we separate salt from sea water? (a) evaporating (b) handpicking (c) sieving (d) filtering
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
34. 34.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) cotton or cloth (d) a battery cell
35. 35.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
36. 36.True or false: tea leaves from tea is done by sieving. (a) True (b) False
37. 37.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
38. 38.True or false: bad grains from rice is done by handpicking. (a) False (b) True
39. 39.🫗 How do we separate mud from water? (a) evaporating (b) sieving (c) handpicking (d) filtering
40. 40.True or false: tea leaves from tea is done by filtering. (a) True (b) False

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