NESA Science 6-12 Practice UPDATED
ACTUAL Exam Questions and CORRECT
Answers
solid - CORRECT ANSWER - a state of matter in which a substance has a definite shape
and volume.
liquid - CORRECT ANSWER - a state of matter in which a substance has NO definite
shape but does have a definite volume. Takes the shape of its container.
gas - CORRECT ANSWER - a state of matter with NO definite shape OR volume. The
particles move quickly and have no shape.
mass - CORRECT ANSWER - the amount of matter in an object
weight - CORRECT ANSWER - the measurement of the force of gravity upon an object
volume - CORRECT ANSWER - the amount of space that matter occupies
density - CORRECT ANSWER - How much MASS is found in a given VOLUME. It can
be found by dividing the mass by the volume.
atoms - CORRECT ANSWER - the smallest particles of an element
molecules - CORRECT ANSWER - two or more atoms combined
elements - CORRECT ANSWER - pure substances which cannot be broken down
, compounds - CORRECT ANSWER - a pure substance made when two or more elements
are chemically combined
matter - CORRECT ANSWER - the "stuff" that makes up everything in the universe
chemical changes - CORRECT ANSWER - changes in a substance when one or more
substances combine to form something new
physical changes - CORRECT ANSWER - changes the form of a substance but not its
identity.
boiling point - CORRECT ANSWER - the temperature at which a liquid boils; water does
this at 100 degrees C.
melting point - CORRECT ANSWER - the temperature at which a solid changes to a
liquid
physical properties - CORRECT ANSWER - properties of a substance that are ALWAYS
the same no matter what size the sample of the substance. Some examples are density, hardness,
and boiling or melting point.
cell cycle - CORRECT ANSWER - the life cycle of a cell
cellular respiration - CORRECT ANSWER - the energy making process in animals where
cells use oxygen to produce energy from food
photosynthesis - CORRECT ANSWER - the energy making process where plants use
sunlight, carbon dioxide, and water to make their own food
osmosis - CORRECT ANSWER - the diffusion of water across a membrane
ACTUAL Exam Questions and CORRECT
Answers
solid - CORRECT ANSWER - a state of matter in which a substance has a definite shape
and volume.
liquid - CORRECT ANSWER - a state of matter in which a substance has NO definite
shape but does have a definite volume. Takes the shape of its container.
gas - CORRECT ANSWER - a state of matter with NO definite shape OR volume. The
particles move quickly and have no shape.
mass - CORRECT ANSWER - the amount of matter in an object
weight - CORRECT ANSWER - the measurement of the force of gravity upon an object
volume - CORRECT ANSWER - the amount of space that matter occupies
density - CORRECT ANSWER - How much MASS is found in a given VOLUME. It can
be found by dividing the mass by the volume.
atoms - CORRECT ANSWER - the smallest particles of an element
molecules - CORRECT ANSWER - two or more atoms combined
elements - CORRECT ANSWER - pure substances which cannot be broken down
, compounds - CORRECT ANSWER - a pure substance made when two or more elements
are chemically combined
matter - CORRECT ANSWER - the "stuff" that makes up everything in the universe
chemical changes - CORRECT ANSWER - changes in a substance when one or more
substances combine to form something new
physical changes - CORRECT ANSWER - changes the form of a substance but not its
identity.
boiling point - CORRECT ANSWER - the temperature at which a liquid boils; water does
this at 100 degrees C.
melting point - CORRECT ANSWER - the temperature at which a solid changes to a
liquid
physical properties - CORRECT ANSWER - properties of a substance that are ALWAYS
the same no matter what size the sample of the substance. Some examples are density, hardness,
and boiling or melting point.
cell cycle - CORRECT ANSWER - the life cycle of a cell
cellular respiration - CORRECT ANSWER - the energy making process in animals where
cells use oxygen to produce energy from food
photosynthesis - CORRECT ANSWER - the energy making process where plants use
sunlight, carbon dioxide, and water to make their own food
osmosis - CORRECT ANSWER - the diffusion of water across a membrane
