Homogeneous and Heterogeneous Mixtures

1. Homogeneous mixture is one of its classifications. Which is the following is a homogeneous mixture?

• A. oil and water

• B. mixed nuts

• C. pebbles

• D. seawater

Homogeneous mixture has uniform composition throughout. Which of

the following mixtures which components are easily identified?

• A.juice drink

• B. hot coffee

• C. hot tea

• D. taho

4. Homogeneous mixture has uniform composition throughout. What

is the best description of a heterogeneous mixture?

• A.It could break down easily.

• B.We could easily see the particles.

• C.We could not easily see the particles.

• D.It could transfer the particles to another place.

5.Mixtures are physical combinations of pure substances that have definite

or constant composition. Which of the following mixtures appears to have

only one phase?

• A. halo halo

• B. putong pulo

• C. suman

• D. waknatoy (menudo with pickles)

6. Your science teacher showed in class a bowl of fruit and vegetables

salad. Your classmate examined the mixture and was able to

distinguish fruits from vegetables. What type of mixture was presented

by your teacher?

• A. colloid

• B. heterogeneous (Non-Uniform)

• C. homogeneous (Uniform)

• D. solution

7. Student A tried to mix a tablespoonful of sugar in a glass of hot water. While

Student B mixed the sugar with a glass of tap water. They tried to do this at

the same time. What do you think will they observe on the two mixtures?

• A. The sugar dissolved faster in tap water.

• B. The sugar floated at the top of each solvent.

• C. The sugar dissolved faster in the glass of hot water.

• D. The sugar was not dissolved completely in the two set-ups they made.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

8. Your mother prepared two glasses of juice powder and water, but she was

not able to mix well the mixture in the other glass. Which of the following

factors affecting the rate of dissolution made the other one sweeter

compared to the other glass?

• A. amount of solvent

• B. size of particles

• C. stirring

• D. temperature

9. Colloids are heterogeneous mixture that seem homogeneous because the

solute particles in them can be evenly distributed by stirring and

shaking. Which of the following groups of mixtures are examples of

colloids?

• A. gelatin, blood, cloud

• B. dust in the air, fog, smog

• C. gravel and water, muddy water, sandy water

• D. salt solution, powdered juice and water, sugar solution

10.Colloid is another form of mixture. However, they are heterogeneous

mixtures. Which of the following phrases best describes colloids?

• A. It is a homogeneous mixtures that seem to be heterogeneous.

• B.It is a heterogeneous mixtures that seem to be homogeneous.

• C.It is a suspensions that look like solutions.

• D.It is a solutions that look like colloid.

2. Mixture is produced when two or more substances are combined. Which is an example of a mixture?

• A.coffee powder

• B. salt

• C. sugar

• D. vinegar