Use your Chemical and Physical Change Note-Taking Sheet to help you with these questions.
Physical Property:
Observable with the senses.
Can be determined without chemical transformations.
Chemical Property:
Indicates how a substance may react with something else.
Matter will be rearranged into a new substance.
Identify each as a chemical or physical property (use C or P):
a.) Blue color
b.) Flammability
c.) Solubility
d.) Reacts with Acid
e.) Sour Taste
f.) Melting Point
g.) Reacts with Water
h.) Hardness
i.) Boiling Point
j.) Odor
Indicate whether the following is a physical or a chemical change (use P or C)"
a.) Sodium chloride (NaCl) dissolving in water.
b.) Heat converting liquid water into steam.
c.) Baking soda (sodium bicarbonate) reacting with vinegar.
d.) Iron (Fe) rusts in the presence of oxygen.
e.) Alcohol evaporating.
f.) Sugar dissolving into tea.
g.) Cooking waffles.
h.) Grass growing.
i.) Food digesting.
h.) Towel absorbing water.
Read the following scenarios and use a P to indicate if a physical change has occurred or a C to note if a chemical change has occurred.
a.)
b.)
c.)
d.)
e.)
f.)
g.)
h.)
i.)
j.)
For each scenario, indicate whether a physical or chemical change has occurred with a P or a C in the fill-in-the-blank section.
After each, in the short answer sections, provide evidence that backs-up your answer as to why something is a physical or chemical change.
It might be a good idea to refer back to the definitions of each in your note-taking sheet.
Someone removes a fresh loaf of bread from an oven. A warm slice of the bread is removed and butter is spread over the slice of bread, melting into crevices of the bread.
Evidence for the previous question:
You toast a piece of bread, but the toaster does not stop toasting, soon the toaster is billowing smoke and the bread is black.
Evidence for the previous question:
A straight piece of copper wire is coiled to form a spring.
Evidence for the previous question:
When mixing biscuit batter, you add baking powder which soon reacts to release carbon dioxide gas. This causes the batter to rise and expand.
Evidence for the previous question:
Kool-Aid mix is added to water.
Evidence for the previous question:
Select all of the statements that are TRUE.