Physical Properties/Changes: These involve changes in the state, size, shape, or appearance of a substance without altering its chemical composition.
Examples include melting, dissolving, evaporating, cutting, and changes in physical states like ice melting or water evaporating.
Chemical Properties/Changes: These occur when the substance undergoes a transformation that changes its chemical makeup. Indicators include burning, rusting, reacting with acids or bases, producing gas or light, and changes in color or odor due to a chemical reaction.
Examples include flammability, rusting, souring, and combustion.
Physical and Chemical Properties and Changes Answers
Property/Change
Type
blue color
physical
density
physical
flammability (burns)
chemical
solubility (dissolves)
physical
reacts with acid
chemical
supports combustion
chemical
sour taste
physical
melting point
physical
reacts with water
chemical
hardness
physical
boiling point
physical
luster
physical
odor
physical
reacts with air
chemical
NaCl (table salt) dissolves in water
physical
Ag (silver) tarnishes
chemical
an apple is cut
physical
heat changes H2O to steam
physical
baking soda reacts with vinegar
chemical
Fe (iron) rusts
chemical
alcohol evaporates
physical
ice melts
physical
milk sours
chemical
sugar dissolves in water
physical
wood rots
chemical
pancakes cook
chemical
grass grows
chemical
a tire is inflated
physical
food is digested
chemical
paper towel absorbs water
physical
An ice cube is placed in the sun. Later, there is a puddle of water. Later still the puddle is gone.
physical
Two chemicals are mixed together and a gas is produced
chemical
A bicycle changes color as it rusts
chemical
A solid is crushed to a powder
physical
Two substances are mixed and light is produced
chemical
A piece of ice melts and reacts with sodium
chemical
Mixing salt and pepper
physical
Chocolate syrup is dissolved in milk
physical
A marshmallow is toasted over a campfire
chemical
A marshmallow is cut in half
physical
Scenario 1 (bread is hot, changes size)
chemical and physical
Scenario 2 (bread turns black)
chemical
Scenario 3 (changes color)
chemical
Scenario 4 (dry hair)
physical
Scenario 5 (creates bubbles, CO2 expands in size)
chemical and physical
Scenario 6 (color change)
chemical
Scenario 7 (shape change)
physical
Scenario 8 (color change)
physical
Scenario 9 (size changes, hormone reaction)
physical and chemical
Scenario 10 (change of natural state)
chemical
Changing the size and shapes of pieces of wood
false
In a physical change, the makeup of matter is changed
false
Evaporation occurs when the liquid water changes into a gas
true
Evaporation is a physical change
true
Burning wood
false
Combining hydrogen and oxygen to make water
false
Breaking up concrete
true
Sand being washed out to sea
false
When ice cream melts
false
Acid rain damaging a marble statue
false
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