Quarter 1 MATTER 6th Grade Science Reviewer 50 Questions with Answers

 

Quarter 1  MATTER        6^th Grade Science Reviewer      50 Questions with Answers

Direction: Choose the letter with the best answer. Write your answer on your answer sheet.

1. Which liquid can dissolve most materials?

1. mixture
2. homogeneous mixture
3. heterogeneous mixture
4. water *

2. The liquid that is used to dissolve another substance is called _____.

1. solvent *
2. solute
3. solution
4. homogeneous

3. Which of the following materials does not dissolve in water?

1. detergent powder
2. salt
3. paper clips *
4. sugar

4. What do you call the substance that easily dissolves in a solvent?

1. solubility
2. soluble *
3. insoluble
4. semi- soluble

5. Which is the most soluble in water?

1. plastic
2. refined sugar *
3. pepper
4. sand

6. Which is NOT true about a mixture?

1. It is a combination of two or more substances.
2. It can be solid, liquid or gas.
3. They cannot be separated. *
4. No new substance is produced when components are mixed.

7. Which type of mixture contains substances that are evenly mixed and is uniform in terms of physical

    appearance?

1. mixture
2. homogeneous mixture *
3. heterogeneous mixture
4. solvent

8. Which type of mixture contains component substances that are usually easy to distinguish in physical appearance?

1. solvent
2. homogeneous mixture
3. heterogeneous mixture *
4. solute

9. The component or substance that dissolves or seems to disappear in a solution is called _________.

1. solvent
2. colloid
3. suspension
4. solute *

10. Which of the following materials does NOT belong to the group?

1. mixture of sugar in water
2. sweet lemon tea
3. orange juice
4. fruit salad *

11. It is a combination of two or more substances.

1. mixture *
2. solute
3. solvent
4. element

12. A __________ is a substance, generally a liquid, capable of dissolving other substances.

1. solvent *
2. solute
3. colloid
4. solution

13. Water is called a universal solvent because _____________.

1. It can be dissolved by any substance.
2. It has many uses.
3. It cannot dissolve other substances.
4. It dissolves almost any natural substances. *

14. Which of the following materials does not dissolve in water?

1. soap
2. sugar
3. sand *
4. salt

15. A ________ is a substance dissolved in a solution.

1. mixture
2. solute *
3. solvent
4. solution

16. Which of this material is very soluble in water?

1. iodized salt *
2. paper
3. plastic
4. mayonnaise

17. What is the meaning of solubility?

1. properties of solute
2. characteristics of substances
3. It is the ability of a solute to dissolve a solvent at a given temperature. *
4. none of the above

18. What kind of mixture is orange juice powder mix with water?

1. insoluble mixture
2. homogeneous mixture *
3. heterogeneous mixture
4. colloidal mixture

19. Fruit salad is an example of what kind of mixture??

1. homogeneous mixture
2. suspended mixture
3. heterogeneous mixture *
4. colloidal mixture

20. Which of the following is NOT the characteristics of homogeneous mixtures?

1. uniform composition
2. components have visible boundaries *
3. components have no visible boundaries
4. components can no longer be identified

21. Which among the following is NOT the characteristic of heterogeneous mixtures?

1. components can easily be distinguished
2. components have no visible boundaries *
3. components have visible boundaries
4. no uniform composition

22. It is another form of mixture where its dispersed particles do not settle at the bottom of the container

    because they are light enough to stay dispersed in the dispersal medium.

1. uniformed mixture
2. solute
3. colloid *
4. solution

23. It is a heterogeneous mixture in which solute particles of the dispersed ingredients are not really dissolved in the liquid but settle later on at the bottom of the container.

1. uniformed mixture
2. solution
3. colloid
4. suspension *

24. Which of the following is an example of colloid?

1. oil
2. blood
3. whipped cream *
4. coffee drink

25. Which of the following is an example of suspension?

1. gelatin
2. blood *
3. butter
4. mayonnaise

26. What is the difference between a suspension and a colloid?

1. Suspensions may either be solid, liquid, or gas, while colloids are liquid.
2. Suspensions are homogeneous while colloids are heterogeneous.
3. Suspensions lose their consistency while colloids remain consistent. *
4. Suspensions are for medicines while colloids are for food.

27. Which colloid has both decorative and protective function?

1. ink
2. paint *
3. mud
4. mayonnaise

28. What is an emulsion?

1. It is a universal solvent.
2. It is a mixture of a solute and a solvent.
3. It is a suspension of liquid particles in a gas.
4. It is a mixture of two or more liquids that are normally unmixable. *

29. Which mixture cannot be separated by picking?

1. pins and nails
2. corn and mongo seeds
3. cream and milk *
4. coins and marbles

30. Which mixture can be separated by picking?

1. oil and water
2. nails and coins *
3. cream and milk
4. coffee and water

31. Mechelle wants to cook spaghetti. She boils some pasta and after boiling, she removed the pasta from the water using strainer. What method did she used?

1. filtration
2. decantation
3. sieving *
4. magnetism

32. What method is used to separate rocks into different sized particles for road building and other construction projects?

1. filtration
2. decantation
3. sifting *
4. magnetism

33. To separate grains from husk, which process of separating mixture is applicable?

1. filtration
2. winnowing *
3. sifting
4. decantation

34. It is the process of separating solid substances from a liquid using filter paper or any cloth that can be used as a filtering medium.

1. filtration *
2. winnowing
3. sifting
4. decantation

35. An apparatus containing a filter medium is called ________?

1. filtration
2. filtrate
3. filter *
4. residue

36. Which statement best describes the process of separating mixture through a funnel?

1. Funnel is not used in separating immiscible liquids.
2. Immiscible liquids can be separated using the separating funnel. *
3. Liquids that dissolve very well can be separated by funnel.
4. none of the above

37. It is the process of separating mixture which magnetically material is attracted from a mixture

    using a magnetic force.

1. magnetism *
2. filtration
3. sifting
4. decantation

38. The following materials are magnetic except ________.

1. thumbtacks
2. nails
3. plastic toy *
4. iron paper clip

39. Which is the best way to get salt from salty water?

1. decantation
2. sifting
3. filtration
4. evaporation *

40. Where does the liquid go during the evaporation process?

1. below the ground
2. inside the salt
3. beside the salt pond
4. up into the sky *

41. This is a separating technique that separates the insoluble substances to a solvent such as decanting and centrifuging.

1. sedimentation *
2. filtration
3. distillation
4. evaporation

42. This can be done by letting the mixture to settle and separate by gravity, or by taking out the layers

    of liquid. 

1. distillation
2. evaporation
3. filtration
4. decantation *

43. What is the process by which water changes from liquid to gas or vapor? 

1. filtration
2. evaporation *
3. decantation
4. distillation

44. Which of these solid materials is partially soluble in water? 

1. orange
2. tomato seed
3. paper *
4. plastic

45. What method is useful in cleaning oil spills? 

1. evaporation
2. decantation *
3. distillation
4. filtration

46. What is the best way of separating a teaspoon of iron fillings from a teaspoon of fine sand?

1. distillation
2. magnetism *
3. filtration
4. decantation

47. What makes powdered chocolate dissolve in hot water fast?

1. cold temperature
2. high temperature *
3. surface area
4. none of the above

48. The process in which a solid change directly into a gaseous state on heating is called ________.

1. sublimation *
2. evaporation
3. condensation
4. decantation

49. Which is NOT true about solubility?

1. The manner of stirring is not a factor to dissolve a solute in a solvent. *
2. The size of the solute particles affects the dissolving process.
3. The nature of a solute and the amount of solvent also determine how fast the solute dissolves.
4. The temperature of the solvent affects how fast the dissolving process.

50. Not all substances can be dissolved in water. What do you call the substances that can be dissolved in water?

1. component
2. soluble *
3. solution
4. insoluble

 

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