Mixtures and Separation Quiz

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Quiz on mixtures and separation

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JANICE FAITH DAYHOP

Philippines

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Mixtures and Separation Quiz


Froggy Jumps Mixtures and Separation QuizOnline version Quiz on mixtures and separation by JANICE FAITH DAYHOP 1 1. What is a mixture? a B. Two or more substances physically combined without changing their properties b C. A substance made of only one material c A. A new substance formed by a chemical reaction 2 2. Why do we separate mixtures? a C. To destroy useful materials b B. To remove unwanted materials c A. To create new substances 3 3. Which of the following is an example of a mixture? a C. Rice and stones b B. Oxygen c A. Gold 4 4. Which technique uses the hands to remove unwanted materials? a A. Winnowing b B. Scooping c C. Picking 5 5. Which technique uses moving air or wind? a A. Picking b D. Winnowing c B. Scooping 6 6. Which tool is needed in magnetic separation? a B. Strainer b C. Magnet c A. Spoon 7 7. Which material is attracted to a magnet? a A. Plastic b B. Sand c C. Iron 8 8. Which material is NOT attracted to a magnet? a C. Sand b A. Steel c B. Nickel 9 9. Which separation technique is best for removing floating leaves from water? a B. Scooping b A. Picking c C. Winnowing 10 10. Which of the following is an example of magnetic separation? a B. Removing iron filings from sand b A. Removing stones from rice c D. Scooping oil from soup 11 11. Why is picking useful in preparing rice before cooking? a D. It melts the rice. b A. It changes the rice into a new substance. c B. It removes unwanted materials like stones. 12 12. Why does winnowing work? a A. Heavy materials float away. b B. Lighter materials are blown away by wind. c C. Magnets attract the lighter materials. 13 13. Why is scooping effective in separating oil from soup? a C. Oil sticks to magnets. b B. Oil floats on the surface. c A. Oil sinks. 14 14. Which property is used in magnetic separation? a C. Magnetism b A. Color c B. Taste 15 15. Which technique is most useful for farmers after harvesting rice? a A. Scooping b B. Picking c C. Winnowing 16 16. Which statement about mixtures is TRUE? a A. The substances lose their properties. b B. The substances can still be separated. c D. Mixtures cannot be separated. 17 17. Why is separating mixtures important in recycling? a B. It helps recover useful materials. b A. It mixes waste together. c C. It changes metal into plastic. 18 18. Which characteristic helps determine the correct separation technique? a A. Physical properties b B. Smell only c C. Taste only 19 19. Which technique is based on the size of the materials? a A. Picking b C. Scooping c B. Using magnets 20 20. Which sentence best describes scooping? a B. It removes floating materials using a scoop. b C. It uses wind to separate grains. c A. It separates magnetic objects. 21 21. Maria found small stones mixed with rice. Which technique should she use? a C. Picking b B. Scooping c A. Winnowing 22 22. A farmer wants to remove rice husks from rice grains. Which method is best? a C. Scooping b B. Winnowing c A. Picking 23 23. Which technique should be used to remove floating insects from a bucket of water? a A. Winnowing b B. Picking c C. Scooping 24 24. Carlo accidentally mixed iron nails with sawdust. What should he use? a A. Water b B. Spoon c C. Magnet 25 25. Which situation requires magnetic separation? a A. Picking tomatoes from a basket b C. Removing leaves from water c B. Removing nails from sand 26 26. A recycling center wants to separate metal cans from plastic bottles. Which method is MOST appropriate? a C. Using magnets b A. Scooping c B. Winnowing 27 27. Which technique would be LEAST effective in separating iron filings from sand? a D. Magnet attraction b A. Using magnets c B. Picking 28 28. Which property is MOST important when deciding whether to use scooping? a B. Floating ability b A. Color c C. Smell 29 29. Which pair is correctly matched? a B. Scooping – removing stones from rice b C. Picking – removing spoiled fruits c A. Winnowing – removing floating oil 30 30. Which statement best explains why different techniques are used in separating mixtures? a C. Every mixture can only be separated by hand. b B. Different mixtures have different physical properties. c A. Every mixture has the same properties.

Mixtures and Separation Quiz

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Mixtures and Separation QuizOnline version

by JANICE FAITH DAYHOP

1. What is a mixture?

2. Why do we separate mixtures?

3. Which of the following is an example of a mixture?

4. Which technique uses the hands to remove unwanted materials?

5. Which technique uses moving air or wind?

6. Which tool is needed in magnetic separation?

7. Which material is attracted to a magnet?

8. Which material is NOT attracted to a magnet?

9. Which separation technique is best for removing floating leaves from water?

10. Which of the following is an example of magnetic separation?

11. Why is picking useful in preparing rice before cooking?

12. Why does winnowing work?

13. Why is scooping effective in separating oil from soup?

14. Which property is used in magnetic separation?

15. Which technique is most useful for farmers after harvesting rice?

16. Which statement about mixtures is TRUE?

17. Why is separating mixtures important in recycling?

18. Which characteristic helps determine the correct separation technique?

19. Which technique is based on the size of the materials?

20. Which sentence best describes scooping?

21. Maria found small stones mixed with rice. Which technique should she use?

22. A farmer wants to remove rice husks from rice grains. Which method is best?

23. Which technique should be used to remove floating insects from a bucket of water?

24. Carlo accidentally mixed iron nails with sawdust. What should he use?

25. Which situation requires magnetic separation?

26. A recycling center wants to separate metal cans from plastic bottles. Which method is MOST appropriate?

27. Which technique would be LEAST effective in separating iron filings from sand?

28. Which property is MOST important when deciding whether to use scooping?

29. Which pair is correctly matched?

30. Which statement best explains why different techniques are used in separating mixtures?