GA Milestones Science Study guide 8th grade
UPDATED ACTUAL Questions and
CORRECT Answers
Solid - CORRECT ANSWER - matter with a definite shape and volume.
For example, when you pick up a rock from the ground and place it in a bucket, it does not
change shape or size.
A solid does not take the shape of a container, this is because the particles of a solid are packed
closely together.
* The particles in a solid vibrate. they do not move around because they do not have enough
energy too.
Liquid - CORRECT ANSWER - A liquid is a matter that has a definite volume but no
definite shape.
For example when you pour one liquid from one container to another,the liquid takes the shape
of the container
The volume of a liquid however is the same no matter what the shape of the container is.
the particles in a liquid move more freely. The particles in a liquid have enough energy to move
out of their fixed positions, but not enough energy to move far apart.
Gases - CORRECT ANSWER - Most gases are invisible. For example the air you breathe
is a mixture of gases.
, Gas is a matter that does not have a definite shape or volume. The particles are much farther
apart than those in a liquid or a solid.
Gas particles move at high speeds in all different directions. They will spread out evenly, as far
apart as possible.
If you poured the same volume of a gas into a container the gas would fill the container
completely. A gas can expand or be compressed. Decreasing the volume of the container
squeezes the gas particles closer together.
The particles in a gas move at high speeds and in all different directions.
Energy - CORRECT ANSWER - Energy is the ability to do work or cause change. The
energy of motion is called kinetic energy. Particles within matter are in constant motion. The
amount of motion of these particles depends on the kinetic energy they possess.
Particles with more kinetic energy move faster and farther apart.
Particles with less energy move more slowly and stay closer together.
Thermal Energy - CORRECT ANSWER - The total kinetic energy and potential energy of
all the particles inside a sample of matter is called thermal energy.
Thermal energy, an extensive property, depends on the number of particles in a substance as well
as the amount of energy each particle has.
Warmer objects have more thermal energy then cold objects.
Freezing - CORRECT ANSWER - The change from the liquid state to a solid state is
called freezing. As he liquid cools, it loses thermal energy. As a result the particles slow down
and come more closer together.
UPDATED ACTUAL Questions and
CORRECT Answers
Solid - CORRECT ANSWER - matter with a definite shape and volume.
For example, when you pick up a rock from the ground and place it in a bucket, it does not
change shape or size.
A solid does not take the shape of a container, this is because the particles of a solid are packed
closely together.
* The particles in a solid vibrate. they do not move around because they do not have enough
energy too.
Liquid - CORRECT ANSWER - A liquid is a matter that has a definite volume but no
definite shape.
For example when you pour one liquid from one container to another,the liquid takes the shape
of the container
The volume of a liquid however is the same no matter what the shape of the container is.
the particles in a liquid move more freely. The particles in a liquid have enough energy to move
out of their fixed positions, but not enough energy to move far apart.
Gases - CORRECT ANSWER - Most gases are invisible. For example the air you breathe
is a mixture of gases.
, Gas is a matter that does not have a definite shape or volume. The particles are much farther
apart than those in a liquid or a solid.
Gas particles move at high speeds in all different directions. They will spread out evenly, as far
apart as possible.
If you poured the same volume of a gas into a container the gas would fill the container
completely. A gas can expand or be compressed. Decreasing the volume of the container
squeezes the gas particles closer together.
The particles in a gas move at high speeds and in all different directions.
Energy - CORRECT ANSWER - Energy is the ability to do work or cause change. The
energy of motion is called kinetic energy. Particles within matter are in constant motion. The
amount of motion of these particles depends on the kinetic energy they possess.
Particles with more kinetic energy move faster and farther apart.
Particles with less energy move more slowly and stay closer together.
Thermal Energy - CORRECT ANSWER - The total kinetic energy and potential energy of
all the particles inside a sample of matter is called thermal energy.
Thermal energy, an extensive property, depends on the number of particles in a substance as well
as the amount of energy each particle has.
Warmer objects have more thermal energy then cold objects.
Freezing - CORRECT ANSWER - The change from the liquid state to a solid state is
called freezing. As he liquid cools, it loses thermal energy. As a result the particles slow down
and come more closer together.
