Vocabulary
Everything that has mass and takes up space
Matter
Definition: properties of matter that can be observed or measured
Physical Properties
What are the states of matter ?
solid, liquid, gas
Atoms in a solid are not moving.
True or False
False
Formula for Density
Density = mass/volume
The amount of matter in something
Mass
A new substance is formed in
chemical change
have a definite volume but no definite shape
liquid
Adding heat to a pot of water will change the liquid into what state?
gas
Density of water (with units)
1 g/mL
1 g/cm^3
Amount of space and object takes up
Volume
You place a marshmallow on a stick and place it over the fire, it starts to turn brown and get gooey.
(physical Change or Chemical Change)
Chemical Change
has a definite shape and a definite volume
solid
The process of changing from a gas to a liquid is called?
condensation
Density of 200 g block that moves water from 40 mL to 50 mL (round to 100ths place)
20 g/mL
A chemical reaction that releases energy - gives off heat or light
exothermic
Melting chocolate
Physical change
has no definite volume but no definite shape
gas
The process of changing from a liquid to a gas is called in room temperture?
Evaporation
What is mass of 1cmX1cmX1cm substance with density of 8 g/mL ?
8 g
The change of state from solid to gas
sublimation
The temperature where a substance loses heat and changes from a liquid state to a solid state.
Freezing Point
Think of a glass of soda the bubbles are an example of what state of matter?
gas
Water can turn into a solid by what process?
Freezing
The atoms or molecules in matter are in constant motion. (True or False)
True