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Physical vs Chemical Changes
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Identify the physical change
 
Ripping paper
 
Roasting marshmallows
 
Baking a pizza
 
Mixing baking soda and vinegar (gas forms)
Why is metal rusting a chemical change and not a physical one?
Answers will vary...
Why is melting ice a physical change and not a chemical one?
Answers will vary...
Physical changes can sometimes produce heat
 
True
 
False
Physical changes are often phase changes. What are "phase changes"
 
Changes in states of matter
 
Changing style phases, like from goth to punk
 
When a solid becomes a liquid
When substances interact, if there's a color change, it's a type of chemical change
 
Not always
 
Yes always
Identify the chemical change
 
All of the above
 
Food rotting
 
Metal rusting
 
Food digesting
New products are often formed during physical changes. T/F?
False
Baking a cake is an example of a...
 
Chemical change
 
Physical change
Which type of change is often a phase change, chemical or physical?
 
Chemical
 
Physical
Is popping a balloon a chemical or physical change?
 
Physical
 
Chemical
What type of change is occurring?
 
Both physical and chemical
 
Physical
 
Chemical
Which of the following is a chemical change?
 
Rusting iron
 
Evaporation of water
 
Smelting of metals
 
Slicing an apple
Is boiling water a physical change or chemical change?
Physical
Name three ways in which you can tell a physical change has occurred
Easily reversed, no new products formed, color change, phase change
Chemical or Physical change?
Physical
Chemical or Physical change?
Chemical
Chemical or Physical change?
Physical
Chemical or Physical change?
Chemical
Chemical or Physical change?
Chemical
Name three indicators that a chemical change has occurred
Formation of light, heat, sound, bubbles (gas), water
Physical changes CANNOT cause a color change. T/F?
False
Chemical changes can cause a color change. T/F?
True
A change to the chemical properties of matter
Chemical change
A change to the physical properties of matter
Physical change
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