Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 32 · 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.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
2. 2.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same muddy water (c) the filter material (d) the same glass
4. 4.⚖️ 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
5. 5.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
6. 6.🧺 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) a funnel
7. 7.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bad grains from rice (c) husk from rice grain (d) sugar from sugar water
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) cotton or cloth (d) a mirror
9. 9.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
10. 10.🫗 Which of these is done by filtering? (a) small stones from dal (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
11. 11.🫗 How do we separate small stones from dal? (a) handpicking (b) filtering (c) sieving (d) evaporating
12. 12.🫗 Which of these is done by handpicking? (a) small stones from dal (b) tea leaves from tea (c) sugar from sugar water (d) bran from wheat flour
13. 13.⚖️ 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
14. 14.🔮 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
15. 15.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
16. 16.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
19. 19.🫗 How do we separate husk from rice grain? (a) handpicking (b) filtering (c) winnowing (d) evaporating
20. 20.⚖️ 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
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 same glass (c) the filter material
22. 22.🧺 Do we need a mirror 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? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the same glass (d) the filter material
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a battery cell (c) muddy water (d) a clean glass
25. 25.True or false: salt from sea water is done by handpicking. (a) False (b) True
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
27. 27.True or false: yeast is needed for the muddy water filter. (a) False (b) True
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is hot (c) clear water is sweet (d) germs are invisible
29. 29.🫗 Which of these is done by sieving? (a) small stones from dal (b) bad grains from rice (c) bran from wheat flour (d) chaff from wheat grain
30. 30.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
31. 31.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
32. 32.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
33. 33.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
34. 34.True or false: tea leaves from tea is done by winnowing. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
37. 37.True or false: mud from water is done by winnowing. (a) True (b) False
38. 38.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) mud from water (c) chaff from wheat grain (d) bad grains from rice
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
40. 40.True or false: tea leaves from tea is done by handpicking. (a) True (b) False

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