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Transcript
Changes in Matter
Physical Change
A substance that undergoes a physical
change is still the same substance after the
change. ATOMS STAY THE SAME
Changing states/phases
– water to ice
– Solid butter to liquid butter
Changes in shape or form
–
–
–
–
bending
crushing
breaking
chopping
Chemical Change/Reaction
A change in matter that produces one or more
new substances.
ATOMS GAIN, LOOSE OR SHARE ELECTRONS
Evidence of a chemical change:
–
–
–
–
–
–
Unexpected color change
Change in odor
Gas bubbles/fizzing appears
Electricity is generated
Light is produced
Fire/smoke is produced