GRADE 8 SCIENCE REVIEW-QUARTER III

Which of the following statements BEST describes matter?

• It has weight.
  

• It is a form of energy.
  

• It has a definite shape.
  

• It occupies space and has mass.
  

Which is NOT an example of matter?

• air
  

• chalk
  

• sound
  

• water
  

Which of the following statements is TRUE regarding the particle nature of
matter?

• Matter is not made of tiny particles.
  

• Particles of matter are moving all the time.
  

• Particles of matter do not attract each other.
  

• Spaces between the particles are filled with air.
  

Which of the following has the weakest force of attraction between the particles?

• gas
  

• liquid
  

• solid
  

• vacuum
  

What happens to the attractive forces of liquid particles when they are cooled?

• start to weaken
  

• start to decrease
  

• remain the same
  

• start to strengthen
  

The attractive force of the particles of a gas is described as _________ attractive
force.

• weak
  

• strong
  

• very strong
  

• intermediate
  

Which of the following statements BEST describes the particles of a gas?

• All the particles are attached from each other.
  

• The particles are not attached and moving slowly.
  

• The particles are arranged in sequence and moving rapidly.
  

• The particles are not attached and are moving rapidly in any direction.
  

Which statement describes the particles of solid?

• Its particles are closely packed and held together by strong attractive force.
  

• Its particles have enough space, definite volume but have indefinite shape.
  

• Its particles are far from each other and have an indefinite volume and
  shape.
  

• Its particles are free to move slowly but it takes the shape of their
  container.
  

Which of the following states of matter cannot be held by your hand?

• Gas
  

• Liquid
  

• Solid
  

• Both gas and liquid
  

Why do liquids have definite volume but have indefinite shape?

• Because its particles are closely packed and have strong attractive forces.
  

• Because its particles are far from each other and they occupy the entire
  space available.
  

• Because its particles are free to move easily and are held together by less
  attractive force.
  

• Because its particles have weak attractive forces and are moving from one
  place to another.