Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 922 · 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 funnel (b) the same muddy water (c) how clear the water is (d) the amount poured
2. 2.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a clean glass (d) yeast
3. 3.⚖️ 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
4. 4.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
5. 5.True or false: mud from water is done by filtering. (a) False (b) True
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) True (b) False
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sand (c) no, salt passes through (d) it turns to sugar
10. 10.⚖️ 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
11. 11.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) evaporating (c) winnowing (d) filtering
12. 12.⚖️ 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 muddy water (b) the amount poured (c) the filter material (d) the same funnel
13. 13.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wash hands afterwards (d) wipe hands on face
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) yeast (d) sand and pebbles
15. 15.⚖️ 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
16. 16.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) a mirror (d) muddy water
18. 18.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) sieving (d) evaporating
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a magnet (c) a clean glass (d) muddy water
20. 20.🛟 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
21. 21.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) yeast (d) muddy water
23. 23.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a magnet (d) muddy water
26. 26.🫗 How do we separate bran from wheat flour? (a) sieving (b) winnowing (c) filtering (d) handpicking
27. 27.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a mirror (c) a balloon (d) turmeric powder
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a battery cell (c) cotton or cloth (d) a clean glass
30. 30.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) sieving (d) handpicking
31. 31.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
32. 32.🫗 Which of these is done by sieving? (a) bad grains from rice (b) chaff from wheat grain (c) gravel from fine sand (d) tea leaves from tea
33. 33.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) bad grains from rice (c) gravel from fine sand (d) salt from sea water
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 balloon (d) a funnel
35. 35.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
37. 37.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it floats on top (c) it turns to sand (d) it sinks to the bottom
38. 38.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
39. 39.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) sugar from sugar water (c) husk from rice grain (d) mud from water
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) a clean glass (d) sand and pebbles

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