FIRST SUMMATIVE TEST IN SCIENCE VIII (3RD QUARTER)
Direction: Read each question carefully and write the letter of the correct answer on your paper.
1. Which do you think has the strongest force of attraction between the particles?
A. Gas
B. Solid
C. Liquid
D. Vacuum
2. Which of the following describes matter?
A. It exists in two phases.
C. Anything that takes up space and has mass.
B. Either have no mass or don’t fill a volume.
D. It is made up of small particles called elements.
3. Which is the smallest particle of matter?
A. Atom
B. Cell
C. Element
D. Molecules
4. Why can gas molecules be easily compressed?
A. Gas molecules are soft.
C. Gas molecules are free and move easily.
B. Gas molecules are far apart.
D. Gas molecules follow the shape of the container.
5. Which of the following are particles of matter?
A. Gas and solid
B. Mass and weight
C. Atoms and molecules
D. Electrons and protons
6. Why do liquids have the ability to evaporate?
A. Liquid particles can slide past one another. C. There are no attractive forces between liquid particles.
B. Liquid particles are relatively close together. D. Liquid particles have enough energy to escape into gas state.
7. How would you describe the properties of solid, liquid and gas in macroscopic level?
A. Based on their movement.
C. Based on their size and shape.
B. Based on their arrangement.
D. Based on their shape and volume.
8. What can you infer on the forces of attraction of molecules when solid ice turns to liquid water?
A. They lose energy.
C. The particles get compressed.
B. They gain energy.
D. The particles are magnetized.
9. What would happen to the atoms and molecules of a substance when temperature is increased?
A. The atoms and molecules stay the same.
C. The atoms and molecules will gain energy.
B. The atoms and molecules will lose energy.
D. The atoms and molecules will collide one another.
10. How can you classify solids from liquids according to its volume and shape?
A. Both solids and liquids have definite shape and volume.
B. Both solids and liquids have indefinite shape and volume.
C. Solids have no definite shape and volume while liquids have.
D. Solids have definite shape and volume while liquids have a definite volume, but take the shape of the container.
11. What is the process in which a solid is changed to a liquid?
A. Condensation
B. Evaporation
C. Freezing
D. Melting
12. Thin blade float on water. Spider walking on surface of ponds. What property of liquid explains these activities?
A. Fluidity property of liquid.
C. Capillary action property of liquid.
B. Viscosity property of liquid.
D. Surface tension property of liquid.
13. What is the transformation process in which a liquid is changed to a solid?
A. Condensation
B. Evaporation
C. Freezing
D. Melting
14. Why do liquids can flow out of a container and can be poured into another while maintaining their volume?
A. The distance of particles is large and move closer to each other.
B. The particles are fixed make it possible to have a definite volume.
C. The particles cannot move around which hold them together and make it possible to have a definite volume.
D. The particles are attracted to one another strongly which hold them together and make it possible to have a
definite volume.
15. Which of the following describes solid?
A. It flows and spread out.
C. It has no definite shape and volume.
B. The particles move freely.
D. The particles are packed closely in fixed positions.
16. What is your opinion why ice cubes float on water considering solids have greater density than liquids?
A. The water molecules in ice are more closely packed together than in liquid water.
B. The molecules of solid water attract each other compared to liquid molecules.
C. The water molecules in ice cubes are less closely packed together than in liquid water.
D. There are no spaces between molecules in ice resulting to more particles per volume in liquid water than solid
water.
17. What process is involved when the solid iodine and solid carbon dioxide (dry ice) change directly from solid phase to gas
phase?
A. Condensation
B. Evaporation
C. Melting
D. Sublimation
18. Why does the red liquid inside the thermometer moves down, when a thermometer is cooled?
A. The glass of the thermometer gets cold.
C. The red liquid sinks because the thermometer is cold.
B. The red liquid is thick and it goes down.
D. The molecules of the liquid move slower and get a little closer
together.
19. What process is involved when the solid iodine and solid carbon dioxide (dry ice) change directly from solid phase to gas
phase?
A. Condensation
B. Evaporation
C. Melting
D. Sublimation
20. What action would you do to change back to liquid form the solidified oil?
A. Stir the solid oil.
C. Shake the solid oil.
B. Heat the solid oil.
D. Put the solid in a freezer.
21. What explanation you have when you heat a sample of solid and it gets bigger?
A. Heat helps the particles grow.
C. Heating allows the particles to move faster.
B. Heating the sample makes it lighter.
D. Heating helps the particles slide past each other.
22. What can you infer from a folded paper turned into origami bookmark?
A. There is a change in mass of the paper.
C. There is a change in weight of the paper.
B. There is a change in shape of the paper.
D. There is a change in volume of the paper.
23. Why does the red liquid inside the thermometer moves up when a thermometer is heated?
A. The glass of the thermometer gets hot.
B. The red hot liquid is thin and it easily moves up.
C. The red hot liquid is lighter and it easily moves up.
D. The molecules of the red liquid move faster and get a little further apart.
24. Why do you think food coloring spreads out faster in hot water than in cold water?
A. The molecules in hot water are larger.
C. The hot water molecules are less dense.
B. The food coloring molecules are small.
D. The hot water molecules move more quickly.
25. How would you explain when you bring two drops of water near each other, allow them to touch and they combine
immediately to form one drop?
A. Water is a liquid state of matter.
C. Water molecules are attracted to each other.
B. Water molecules are made of atoms.
D. Water molecules are magnetic and repel each other.