Science Unit 7 Review Flashcards
Anything that takes up space and has mass
Matter
Two or more atoms joined together to make a different type of matter
Molecule
Smallest piece of matter
Atom
A type of matter that becomes evenly mixed with another type of matter
dissolves
A combination of two or more types of matter
Mixture
Type of mixture where all the different parts are evenly mixed
Solution
A change that causes matter to look different but doesn’t change the matter itself
Physical change
A change that creates a different type of matter with new properties
Chemical change
Process of a liquid turning into a solid
Freezing
Process of a gas turning into a liquid
Condensation
Process of a liquid turning into a gas
Evaporation
The process of a solid turning into a liquid
Melting
The measure of how much stuff is inside something
Mass
A measure of how much space an object takes up
Volume
If an object is more dense than the water it touches, the object will ______
sink
If the NORTH side of a magnet is facing the NORTH side of another magnet, the two magnets will be _____ by each other
repelled
The earth has a magnetic field because the Earth’s core has ____ in it
iron
A ______ is rigid, has a definite shape, and a definite volume
solid
If heat energy is added to a glass of water, the water in the glass will ______
evaporate
A _______ change happens when vinegar and baking soda are mixed and bubbles are made
chemical
A ____ change happens when water in a lake freezes into ice
physical
A ____ change happens when a block of cheese is cut into small pieces
physical
A ______ change happens when an apple rots
chemical
A ____ change happens when a bike rusts
chemical
A ______ change happens when a saltwater solution is made
physical
