This document is a summative test for an 8th grade science class covering key concepts about the phases of matter and their properties. The test contains multiple choice and essay questions. The multiple choice section has 10 questions testing students' understanding of gas pressure, liquid surface tension and capillary action, viscosity, kinetic molecular theory, molecules, crystalline solids, liquid fluidity and density. The essay questions ask students to illustrate and explain the molecular movements and arrangements in the different phases of matter and discuss two properties of each phase.

1. Panabo City Adventist Academy
Purok 18, New Visayas, Panabo City
SUMMATIVE TEST
for SCIENCE 8
Name:_________________________________________ Date:___________________
Year & Section:__________________________________ Score:__________________
GENERAL INSTRUCTION: Write all your answers in your paper; don’t write anything in this sheet. Avoid ERASURES.
Test I. Multiple Choice Direction: Shade the letter of your best choice.
1. What property of gas that creates a force through the constant collision of molecules inside the container?
a. Density b. Volume c. Pressure d. Surface Tension
2. Which property of liquid refers to the attraction of forces from molecules to molecules that enable liquid to move
upward?
a. Density b. Surface Tension c. Capillary Action d. Temperature
3. Which of the following statements is true to viscosity?
a. The more water content in the substance, the more viscous.
b. The more liquid added to a substance, the more viscous.
c. The thicker the liquid substance, the greater the viscosity.
d. The lesser the amount of solid particles present in a substance, the lesser the viscosity.
4. Which statement does not describe the Kinetic Molecular Theory of Matter?
a. Particles in motion possess kinetic energy.
b. Particles in any matter are in constant and random motion.
c. The motion of particles increases as they gain energy.
d. none of the above.
5. Among the items below, which is an example of a molecule?
a. hydrogen b. oxygen c. water d. carbon
6. What do you call to the property of solid in which its atoms, ions, or molecules are arranged in an orderly, geometric,
three-dimensional structure?
a. Amorphous Solid b. Metallic Solid c. Crystalline Solid d. Viscosity
7. A liquid food coloring can flow and completely mix with water. This statement is an example of what property of
liquid?
a. viscosity b. Capillarity c. fluidity d. surface tensionity
8. Density is the ratio of mass per unit volume. Suppose we have a rock with a mass of seven grams, and we submerge
it to a twenty mL water. Eventually it rises to twenty-five mL. What is the density of the rock?
a. 1.3 g/mL b. 1.5 g/mL c. 1.4 g/mL d. 2.2 g/mL
9. Which of the following statement is true with a liquid?
a. It has indefinite volume and shape.
b. Its shape and volume are constant.
c. Liquids have definite volume but indefinite shape.
d. all of the above.
10. Water molecules have forces of attraction from each other. Which best describes the statement?
a. Density b. Capillarity c. Cohesion d. Adhesion
Test II. Essay Direction: Give/show what is asked.
1. Illustrate in a box and explain comprehensively the different molecular movement and arrangement of the phases of
matter. (10 pts)
2. Discuss at least two properties of each phases of matter. (10 pts)
“By HUMILITY and the FEAR of the LORD are riches, and honour, and life.” – Proverbs 22:4
Prepared by:
Sarah Jane C. Lambonao
Science 8 Teacher