Science 6: Quiz 1-3

What is a homogeneous mixture?

• a) A mixture with two or more phases.

• b) A mixture whose components can be easily distinguished.

• c) A mixture that has only one phase and a uniform composition.

• d) A mixture where particles settle over time.

The prefix "homo-" comes from the Greek word "homos," which means:

• a) Different

• b) The same

• c) Mixed

• d) Separated

Which of the following is a characteristic of homogeneous mixtures?

• a) Its components can be distinguished from one another.

• b) It has a non-uniform composition.

• c) It exhibits uniformity in appearance and properties throughout.

• d) It consists of multiple phases.

What is a heterogeneous mixture?

• a) A mixture where components blend completely and are indistinguishable.

• b) A combination of two or more substances that do not blend completely and remain visibly distinct.

• c) A mixture that has only one phase.

• d) A solution where one substance is dissolved in another.

Halo-halo is given as an example of a heterogeneous mixture because:

• a) All its ingredients blend completely.

• b) The ingredients dissolve to form a single uniform solution.

• c) You can still see and identify components like nata de coco, garbanzos, and ube.

• d) It consists of only one phase.

What is a "suspension" in the context of heterogeneous mixtures?

• a) A mixture where two unblendable liquids are mixed.

• b) A mixture where solid particles are scattered in a liquid but do not dissolve, and settle over time.

• c) A mixture with tiny particles evenly distributed that do not settle.

• d) A mixture of elements that have the characteristics of a metal.

• What is the process of pouring off a liquid from a solid that has settled at the bottom called?

• • a) Filtration

• • b) Evaporation

• • c) Decantation

• • d) Dissolving

If you have a mixture of pebbles and water, which physical means can be used to separate them?

• a) Dissolving

• b) Filtering or picking

• c) Evaporation only

• d) Stirring thoroughly

Which of the following is a characteristic of heterogeneous mixtures?

• a) They exhibit uniformity in appearance.

• b) Their components cannot be identified separately.

• c) Each substance retains its own physical properties even after being mixed.

• d) They can be filtered but not separated by picking or decanting.

Which of these is an example of a solid homogeneous mixture?

• a) Halo-halo

• b) Air

• c) Vinegar

• d) Steel