SCIENCE QUIZ BEE REVIEWER No. 4 - MIXTURE

 SCIENCE QUIZ BEE REVIEWER No. 4

MIXTURES

EASY

1.      What is formed when two or more substances are combined?

a.Pure Substance          B. Mixture   C. Matter          D. Solid Matter

2.      What mixture has a uniform composition and exist in single form?

a.Homogeneous Mixture                  C. Matter

b. Heterogeneous Mixture                  D. Pure Substance

      3.What mixture has NO uniform composition and exist in two or more phases?

a.Matter                                               C. Homogeneous Mixture

b. Pure Substance                                D. Heterogeneous Mixture

 

      4. Which of the following materials can be dissolved?

a. Stone                       c. sugar              b. leaf                       d. clot

     5. Which is NOT a heterogeneous mixture?

            a. . Cement                  b. Salad       c. halo-halo         d. air

 

AVERAGE

1.      If you are going to mix hot water and coffee powder what will happen?

 a. The coffee powder will not dissolve in water.

b. The coffee powder will dissolve in water thoroughly.

c. The coffee powder will dissolve in water partially.

d. None of the above

     2. Which of the following liquids do not mix with water?

A. Liquid soap                                    C. Soy sauce

B. Oil                                                  D. Vinegar 

     3.  Which of the following is the use of a rubbing alcohol?

            a.antiseptic     b.flavoring      c.frying food   d.killing insects

      4. Which material is used for cooking?

            a.alcohol          b.detergent bar               c.lotion         d. salt

     5. Floor wax can be found at home. What is the use of it?

            a. frying the food                    c. make the floor shiny

            b. headache and fever             d. clean the tiles in the bathroom

    

 

DIFFICULT

1.      Which of this best describes a heterogeneous mixture?

a. The components are not visible.                 b. They show only one phase.

             c. They have components that are not uniform.    d. They have the same properties.

      2. Which of the statements/phrase best describes a solution?

       a. Solution is formed when one substance dissolves in another substance.

b. Solutions are heterogeneous mixtures.

c. Pizza, halo-halo and fruit salad are examples of a solution.

d. Both b and c

      3.  Your mother prepared fruit salad for snack. How will you describe its ingredients?

             a. It is a homogeneous mixture because it was evenly mixed.

 b. It is a heterogeneous mixture because its components are visible.

c. It is a heterogeneous mixture because of its uniformity.

d. It is a homogeneous mixture because it is not uniform.

      4. A vinegar mixed with soy sauce is a homogeneous mixture because:

a. you can easily identify its components

b. you can only see the dark color of soy sauce

c. the mixture appears one or uniform

d. the mixtures did not mix well

      5. Which of the following is a homogeneous mixture?

I. salt dissolve with water       III. Clothes in the basin

II. blood                                  IV. Books in the shelves

a. I and III                   c. II and IV

b. I and IV                   d. I and II

CLINCHER

1. Mixtures can be classified into 2 types, homogeneous and heterogeneous. How does homogeneous mixture differ from

       heterogeneous mixture?

A.Heterogeneous has 2 substances while homogeneous has 3 or more substances.

B.Homogeneous looks the same throughout while in heterogeneous you can see the different parts.

C.Heterogeneous looks the same throughout while in homogeneous you can see the different parts.

D.Homogeneous and heterogeneous are the same throughout.

2. What happens when you try to mix salt and oil?

A. It becomes homogeneous mixture because then salt dissolve in oil.

 B. It becomes heterogeneous mixture because the salt doesn’t dissolve in oil.

 C. The oil can only dissolve a little bit of salt.

 D. The salt mixed thoroughly with oil.

3.A solution is a type of mixture. How is solution different from other mixtures?

A.Solution is a mixture of one substance dissolved in another.

B.Solution is a mixture of one substance that settle at the bottom of another substance.

C.Solution is a mixture of one substance that do not dissolve in another substance.

D.Solution is a mixture that can still identify the different parts.

4. If you mix hot water and milk powder, what will happen?

a. The milk powder will dissolve in water

b. The milk powder will form a layer.

c. The milk powder will not dissolve in hot water.   

d. None of the above

5. In a solution, what do you call the substance in a larger amount?

a. solute

b. solvent

c. sols

d. none of the above

CHECK YOUR OWN ANSWERS

ANSWER KEY

**EASY:**

1. B. Mixture

2. A. Homogeneous Mixture

3. D. Heterogeneous Mixture

4. C. sugar

5. D. air

**AVERAGE:**

1. B. The coffee powder will dissolve in water thoroughly.

2. B. Oil

3. A. antiseptic

4. D. salt

5. C. make the floor shiny

**DIFFICULT:**

1. C. They have components that are not uniform.

2. A. Solution is formed when one substance dissolves in another substance.

3. B. It is a heterogeneous mixture because its components are visible.

4. C. the mixture appears one or uniform

5. B. I and IV

**CLINCHER:**

1. B. Homogeneous looks the same throughout while in heterogeneous you can see the different parts.

2. B. It becomes heterogeneous mixture because the salt doesn’t dissolve in oil.

3. A. Solution is a mixture of one substance dissolved in another.

4. A. The milk powder will dissolve in water.

5. B. solvent

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