Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 848 · 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.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a funnel (d) muddy water
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
3. 3.⚖️ 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) False (b) True
4. 4.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
5. 5.🫗 Which of these is done by winnowing? (a) mud from water (b) chaff from wheat grain (c) salt from sea water (d) small stones from dal
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) turmeric powder (d) cotton or cloth
7. 7.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) a balloon (d) a battery cell
8. 8.🫗 Which of these is done by sieving? (a) small stones from dal (b) mud from water (c) bran from wheat flour (d) tea leaves from tea
9. 9.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) sieving (d) winnowing
10. 10.True or false: salt from sea water is done by sieving. (a) True (b) False
11. 11.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) yeast (d) sand and pebbles
15. 15.🧺 Do we need a balloon 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? True or false: the same muddy water is what we measure. (a) False (b) True
17. 17.🧺 Do we need a battery cell 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 same funnel is the one thing we change. (a) True (b) False
19. 19.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) yes, all of it (c) it turns to sugar (d) no, salt passes through
20. 20.True or false: salt from sea water is done by evaporating. (a) True (b) False
21. 21.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) a funnel (d) turmeric powder
22. 22.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the salt (d) the water
23. 23.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
24. 24.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) True (b) False
26. 26.⚖️ 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 change it (c) we measure it
27. 27.⚖️ 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
28. 28.⚖️ 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) how clear the water is (c) the same funnel
29. 29.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is salty (c) clear water is hot (d) germs are invisible
30. 30.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ 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 funnel (d) the same muddy water
32. 32.True or false: bad grains from rice is done by filtering. (a) False (b) True
33. 33.True or false: bad grains from rice is done by handpicking. (a) True (b) False
34. 34.🫗 Which of these is done by evaporating? (a) tea leaves from tea (b) sugar from sugar water (c) small stones from dal (d) mud from water
35. 35.⚖️ 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 amount poured (c) the filter material
36. 36.⚖️ 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 change it (c) we measure it
37. 37.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) a battery cell (d) a clean glass
38. 38.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) winnowing
39. 39.True or false: mud from water is done by filtering. (a) True (b) False
40. 40.True or false: gravel from fine sand is done by sieving. (a) True (b) False

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