Physical Changes In Matter Flashcards
What are the characteristics of physical changes of matter
-No new substance,
-Change happens but it’s still the same thing/matter
-Can be changed back
What are the characteristics of chemical changes of matter
-New substance
-Not the same thing
-Hard to change back
How to spot physical change?
-Size change
-New shape
-Sometimes new color
-New state (solid-> liquid->gas)
-Can be changed back
List examples of physical change
-Crushing can
-Melting an ice cube
-Dissolving sugar in water
-Painting a rock
-Shredding cheese
-Breaking glass
Give one example of physical change. Why is a physical change?
Crushing a can: same matter/no new substance, change in shape/size, can be changed back
Melting an ice cube: same matter/no new substance, change in shape, change in state of matter, can be changed back,
Painting a rock: same matter/no new substance, change in color, can be changed back
What is physical change?
When matter changes its size, shape, and/or form.
Draw how water evaporating is a physical change
~~~~ -> **
Water->Clouds (water vapor)
Liquid-> Gas
Is this a characteristic of physical or chemical change?
New substance
Chemical Change
Is this a characteristic of physical or chemical change?
No new substance
Physical Change
Is this a characteristic of physical or chemical change?
After change, it’s still the same thing/matter as before
Physical Change
Is this a characteristic of physical or chemical change?
After change, it is not the same thing/matter as before
Chemical Change
Is this a characteristic of physical or chemical change?
Can not be easily changed back
Chemical Change
Is this a characteristic of physical or chemical change?
Can be changed back
Physical Change
