Republic of the highes 16 CARAGA Administration Dution of some SANTIAGO NATIONAL HIGH SCHOOL AZ A-7 230 1- QUARTER (Week 45- SUMMATIVE TEST SOBICE - GRADE 7 Pober 25, 2021 Gradie/Second Score A Cosure pop B.Com 10. Which of the Tesi-Multiple Choices Directions: Read each item carefully write on the letter of the correcs ans 1 A class of atter which has a one phase system B. pure substances D.com Celement A 3. pure substances _3. Which of the following is a heterogeneous miere? A at Boil in water B.Com 11. Which of added or Acos B. Con __12. Which AAS __13.id A C. siniless steel D. soft drinks -15. 6. A 4. It is a separating technique in micures in filter are trapped by it A decantation B siering Cevaporation D. fition 5. What is the best way to use in separating iron parts from a mocne A filter paper B. magnet c. water D. spoon is a mixture of two or more substances where the various comperents can be visayasting shes pure substances B. homogeneous D. heterogeneous 7. Homogeneous mixtures are also called A pure substances B. solutions Celements D. compounds 8. A _ is a form of matter that has a constant composition and properties that are constant throughout the sample. mixture B. pure substances Celement D. compound 9. During boiling, the temperature of a mixture is at different times. A different B. the same C. constant D. none of the above 10. The characteristics of different samples of pure substances are because a pure substances have a definite composition A different B. the same C. constant D. none of the above A D. substances of gases 11. Which is true regarding air? A compound of gases B. element of gases c. mixture of gases 12. Sugar solution, salt solution, halo-halo and mayonnaise are examples of _ A pure substances B. mixtures C. element D.compound 13. The concentration of a mixture can be increased in which of the following ways? A heating the mixture B. adding more powder C. adding more water D. stirring the mixture​