Vocab 1
Anything that has mass and takes up space
matter
Give the equation for pressure
pressure = force/area
Molecules in this phase are tightly packed together and vibrate in place
solid
This results in a new substance and is permanently changed.
chemical change
Sugar dissolved into water is an example of what type of mixture?
homogeneous
The amount of matter something has.
mass
What is the unit for mass?
grams
In the following phase changes is energy being added or removed?
melting, evaporation, sublimation
added
A change in matter that does not result in a new substance
physical change
This type of mixture is easy to separate back into its originial components
heterogeneous
The amount of space an object takes up
volume
What is the equation for density?
density = mass/volume
Has no definite shape, but does have definite mass and definite volume
liquid
Give three examples of physical properties.
Examples: density, color, mass, texture, shape, odor
This type of mixture is the same throughout. Lemonade and milk are examples of this type of mixture.
homogeneous
The amount of matter within a given space
density
What is the unit for density?
g/mL or g/cm3
Using the graph shown, explain what is happening during section C. Must be specific!
the liquid is heating up
Give two examples of chemical properties.
Examples: flammability, reactivity
Give an example of a homogeneous mixture
examples: smoothie, lemonade
When a solid turns directly into a gas
sublimation
What is the unit for pressure?
Pa
Using the graph, explain what is happening from section E to section D. Be specific!
The gas is losing heat and turning into a liquid, going through condensation.
What change occurs when you eat food?
chemical change
Give an example of a heterogeneous mixture
Example: salad, trail mix, chex mix, ice cream sundae