Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 969 · 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.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
3. 3.True or false: bran from wheat flour is done by evaporating. (a) True (b) False
4. 4.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
5. 5.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) turmeric powder (c) a clean glass (d) cotton or cloth
8. 8.True or false: bad grains from rice is done by sieving. (a) True (b) False
9. 9.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
10. 10.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) salt from sea water (c) chaff from wheat grain (d) bran from wheat flour
11. 11.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
12. 12.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the same muddy water (b) the amount poured (c) the filter material (d) how clear the water is
14. 14.🔮 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) no, salt passes through (d) it turns to sugar
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 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
17. 17.⚖️ 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) False (b) True
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a magnet (c) cotton or cloth (d) sand and pebbles
19. 19.🫗 Which of these is done by filtering? (a) mud from water (b) salt from sea water (c) chaff from wheat grain (d) bad grains from rice
20. 20.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a balloon (d) muddy water
21. 21.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
22. 22.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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
25. 25.🧺 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 mirror
26. 26.True or false: gravel from fine sand is done by winnowing. (a) False (b) True
27. 27.🫗 Which of these is done by evaporating? (a) gravel from fine sand (b) tea leaves from tea (c) bad grains from rice (d) salt from sea water
28. 28.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
29. 29.🫗 How do we separate chaff from wheat grain? (a) handpicking (b) sieving (c) evaporating (d) winnowing
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a battery cell (c) a funnel (d) sand and pebbles
31. 31.True or false: gravel from fine sand is done by filtering. (a) True (b) False
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a balloon (d) a funnel
33. 33.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
34. 34.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
35. 35.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
36. 36.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
38. 38.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
40. 40.⚖️ 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

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