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Physical change & chemical reactions
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Gravity
Terms in this set (50)
making a cake
chemical reaction
water evaporating into the atmosphere
physical change
rotting fruit or food spoiling
chemical reaction
soil erosion
physical change
boiling an egg
chemical reaction
butter melting in a pan
physical change
soda freezing in the freezer
physical change
making bread
chemical reaction
plants decaying
chemical reaction
silver tarnishing
chemical reaction
chocolate bar melting in the sun
physical change
chopping. block of wood in two pieces
physical change
burning wood
chemical reaction
driving a nail in a board
physical change
digesting food
chemical reaction
blowing up a balloon
physical change
popping popcorn
physical change
physical changes are changes that ___ ____ result in a new substance
do not
chemical changes are changes that result in the production of a new______________
substance
5 examples of chemical change
burning, decomposition, digestion, respiration, photosynthesis
7 examples of physical changes
bending, cutting, crushing, breaking, condensing, freezing, melting
some physical changes can be ____________, but some physical changes cannot be reversed.
reversed
special types of physical changes, such as when water freezes or evaporates, are sometimes called ___________ in _________.
changes in state
cause to look larger than normal size so it can be seen more easily
magnify
the amount of matter in an object; large quantity together
mass
instrument for weighing something
balance
characteristic of matter that can be measured
physical property
a change in size, shape, or state of matter that does not create a new kind of matter
physical change
arrangement of the parts of anything - the feel of something
texture
to mix completely with another substance to form a solution
dissolve
the three typical forms ofnmatter: solid, liquid, gas
state of matter
to move rapidly
vibrate
matter made up of two or more substances or materials that are physically combines
mixture
to separate the parts of something
filter
a change in matter that produces new kinds of matter with different properties
chemical change
a characteristic of matter that can be observed only when that matter is changed into a new kind of matter
chemical property
the pull of gravity on an object
weight
the amount of space that matter takes up
volume
the amount of matter in a given space or given volume
density
__________ is anything that has mass & takes up space
matter
matter can be __________, ___________, or _______.
solid, liquid, gas
give 3 examples of matter
chair, milk, helium
special qualities or characteristics for which something is known
properties
what are some different properties of matter?
shape, size, color, texture
the smallest particle of ma matter that has all the same properties of that matter is called an ________.
atom
two or more atoms joined together make a ______________.
molecule
describe the particles in a solid
vibrating close together, form a definite shape
describe the particles in a liquid
move around more than a solid; definite size but no definite shape
describe particles in a gas
they wont stay together; no fixed size or definite shape
a ______________ _____________ of matter can be seen without changing the matter into something new.
physical change
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