I. Read the questions carefully. Choose the letter of the correct answer.
1. From what mixture do oxygen, carbon dioxide and nitrogen came from?
a. Gas in liquid
c. Solid in liquid
d. Liquid in liquid
b. Gas in gas
2. Which of the statements BEST describes a mixture?
a. It is the combination of two or more materials without chemical changes
b. It is the combination of one material without chemical changes
C. It is the combination of two or more materials with chemical changes
d. It is the combination of one material with chemical changes
3. Mix orange juice powder to water, is what kind of mixture?
a. Heterogeneous mixture
b. Insoluble mixture
C. Homogenous mixture
d. Mixture a. Solid
4. Biko, nilupak and buko salad are examples of what kind of mixture?
a. solid
c. Heterogeneous
b. Liquid
d. Homogenous POM
5. Why is a cup of coffee is considered as a homogeneous mixture?
a. Because the mixture of coffee and sugar is uniform throughout the cup
b. Because the mixture of coffee and sugar differs throughout the cup
C. Because the mixture of coffee and sugar can be identified throughout the cup
d. Because the mixture of coffee and sugar can be distinguished throughout the cup​