Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 644 · 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.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
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 filter material is the one thing we change. (a) False (b) True
4. 4.True or false: bad grains from rice is done by sieving. (a) True (b) False
5. 5.⚖️ 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
6. 6.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.🛟 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
9. 9.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a magnet (c) a funnel (d) sand and pebbles
10. 10.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a clean glass (d) a balloon
11. 11.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bad grains from rice (c) salt from sea water (d) tea leaves from tea
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) yeast (c) sand and pebbles (d) a mirror
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) cotton or cloth (d) a battery cell
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) cotton or cloth (c) yeast (d) a funnel
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) how clear the water is (d) the amount poured
18. 18.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
19. 19.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
20. 20.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
21. 21.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
22. 22.⚖️ 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 filter material (c) the same glass
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a battery cell (d) a funnel
25. 25.⚖️ 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
26. 26.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
27. 27.True or false: salt from sea water is done by handpicking. (a) False (b) True
28. 28.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is clear (c) yes, if it is cold (d) yes, always
29. 29.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) turmeric powder (d) a funnel
31. 31.True or false: a balloon is not needed for the muddy water filter. (a) True (b) False
32. 32.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) bad grains from rice (c) chaff from wheat grain (d) sugar from sugar water
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) a funnel (c) a clean glass (d) sand and pebbles
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.⚖️ 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
36. 36.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) bad grains from rice (c) sugar from sugar water (d) bran from wheat flour
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) turmeric powder (d) muddy water
38. 38.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
39. 39.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the mud (d) the salt
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a mirror

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