Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 696 · 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) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
2. 2.True or false: salt from sea water is done by handpicking. (a) False (b) True
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it turns to sand (d) it dissolves
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a magnet
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) cotton or cloth
6. 6.True or false: tea leaves from tea is done by filtering. (a) True (b) False
7. 7.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bran from wheat flour (c) bad grains from rice (d) gravel from fine sand
8. 8.🛟 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
9. 9.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
11. 11.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) sieving (c) handpicking (d) filtering
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a balloon (c) cotton or cloth (d) a funnel
13. 13.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a funnel (c) a magnet (d) a mirror
14. 14.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) a mirror (c) muddy water (d) a clean glass
18. 18.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
19. 19.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) sieving (d) winnowing
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.🫗 How do we separate mud from water? (a) winnowing (b) handpicking (c) filtering (d) sieving
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) turmeric powder (c) sand and pebbles (d) cotton or cloth
23. 23.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) tea leaves from tea (c) mud from water (d) small stones from dal
24. 24.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) sieving (d) filtering
25. 25.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) chaff from wheat grain (c) gravel from fine sand (d) salt from sea water
26. 26.🫗 How do we separate husk from rice grain? (a) evaporating (b) winnowing (c) handpicking (d) sieving
27. 27.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) tea leaves from tea (c) husk from rice grain (d) sugar from sugar water
28. 28.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
29. 29.🫗 How do we separate bran from wheat flour? (a) filtering (b) sieving (c) evaporating (d) winnowing
30. 30.⚖️ 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) True (b) False
31. 31.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
34. 34.⚖️ 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
35. 35.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) a balloon (d) turmeric powder
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) how clear the water is (c) the same glass (d) the filter material
39. 39.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
40. 40.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False

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