Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 899 · 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 done by evaporating? (a) sugar from sugar water (b) tea leaves from tea (c) gravel from fine sand (d) husk from rice grain
2. 2.True or false: bran from wheat flour is done by sieving. (a) False (b) True
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a mirror (c) cotton or cloth (d) yeast
4. 4.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
5. 5.🛟 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
6. 6.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same glass
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) yeast (d) sand and pebbles
9. 9.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) salt from sea water (c) gravel from fine sand (d) husk from rice grain
10. 10.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
11. 11.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a magnet (c) sand and pebbles (d) a funnel
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) a mirror (d) muddy water
14. 14.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
15. 15.True or false: gravel from fine sand is done by sieving. (a) False (b) True
16. 16.⚖️ 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) the amount poured (c) how clear the water is
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
18. 18.⚖️ 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
19. 19.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the mud dissolves (c) the filter adds soap (d) the water evaporates
20. 20.🫗 Which of these is done by winnowing? (a) chaff from wheat grain (b) mud from water (c) bad grains from rice (d) tea leaves from tea
21. 21.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
23. 23.🫗 Which of these is done by sieving? (a) bad grains from rice (b) bran from wheat flour (c) sugar from sugar water (d) husk from rice grain
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) muddy water (c) cotton or cloth (d) a balloon
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.True or false: husk from rice grain is done by winnowing. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) True (b) False
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) the same glass (c) how clear the water is
29. 29.🫗 How do we separate husk from rice grain? (a) handpicking (b) winnowing (c) filtering (d) evaporating
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) turmeric powder (d) muddy water
32. 32.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
33. 33.True or false: yeast is needed for the muddy water filter. (a) False (b) True
34. 34.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
37. 37.🛟 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
38. 38.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) winnowing (d) filtering
39. 39.True or false: tea leaves from tea is done by sieving. (a) True (b) False
40. 40.⚖️ 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

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