Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 172 · 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 a mirror for the muddy water filter? (a) needed (b) not needed
2. 2.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
3. 3.⚖️ 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) False (b) True
4. 4.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
5. 5.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bad grains from rice (c) gravel from fine sand (d) tea leaves from tea
6. 6.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
8. 8.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) yeast (d) a mirror
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) turmeric powder (c) a funnel (d) sand and pebbles
13. 13.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) muddy water (d) a mirror
14. 14.⚖️ 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
15. 15.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
18. 18.🫗 How do we separate tea leaves from tea? (a) filtering (b) sieving (c) evaporating (d) winnowing
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) a funnel (d) turmeric powder
20. 20.🫗 How do we separate gravel from fine sand? (a) evaporating (b) winnowing (c) sieving (d) handpicking
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same funnel (d) the same glass
22. 22.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
23. 23.True or false: yeast is not needed for the muddy water filter. (a) True (b) False
24. 24.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) sand and pebbles (c) a funnel (d) muddy water
26. 26.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
27. 27.True or false: bran from wheat flour is done by filtering. (a) False (b) True
28. 28.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
29. 29.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a funnel (d) cotton or cloth
31. 31.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) yeast (c) a clean glass (d) a funnel
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
35. 35.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) cotton or cloth (d) a battery cell
37. 37.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
38. 38.🫗 Which of these is done by filtering? (a) salt from sea water (b) husk from rice grain (c) bran from wheat flour (d) tea leaves from tea
39. 39.🫗 How do we separate husk from rice grain? (a) filtering (b) evaporating (c) sieving (d) winnowing
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) sand and pebbles (c) a funnel (d) muddy water

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