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BY BRENDA AND ELENA
SOLIDSTHEY HAVE A DEFINITE SHAPE AND A
DEFINITE VOLUME BECAUSE THEY TAKE UP THE SAME SPACE.
LIQUIDSLIQUIDS DON`T HAVE A DEFINITE SHAPE
BECAUSE THEY ADAPT TO THE CONTAINER THERE ARE IN, BUT THEY HAVE A DEFINITE VOLUME BECAUSE THEY ALWAYS TAKE UP THE SAME SPACE.
GASESGASES don`thave a definite shape
because they adapt to the shape of the container they are in and they don`t have a definite volume because they spand to fill the container they are in.
CHANGES IN MATTERPHYSICAL CHANGES CAN HAPPEN WHEN
MATTER CHANGE STATE AND SHAPE ,BUT THE SUBTANCE DOESN`T CHANGE. PHYSICAL CHANGES CAN HAPPEN WHEN WE HEAT, FREEZE,BEND,TWIST,STRETCH OR SQUASH A SUBSTANCE.
CHEMICAL CHANGESA CHEMICAL CHANGE IS WHEN A NEW
SUBSTANCE IS PRODUCED.CHEMICAL CHANGES CAN HAPPEN WHEN
WE BURN A SUBTANCE OR EXPOSE A SUBTANCE TO AIR.
MIXTURESA MIXTURE IS SOMETHING THAT
CONTAINS TWO OR MORE SUBTANCES.AIR IS A MIXTURE OF GASES.SALTWATER IN THE SEA IS A MIXTURE OF WATER,SALT AND OTHER MINERALS.MANY ROCKS ARE A MIXTURE OF DIFFERENT MINERALS.
HETEROGENOUSIN A HETEROGENEOUS MIXTURE IT IS
EASY TO SEE THE DIFERENTS SUBSTANCES.
HOMOGENEOUS IN A HOMOGENEOUS MIXTURE IT IS
DIFFICULT TO SEE THE DIFERENT SUBTANCES.