states of matter
describe how particles of matter are arranged in a SOLID
particles are tightly packed together. They can vibrate, but cannot move out of position.
What happens to the particles of matter when thermal energy is increased
The particles speed up and start moving faster
describe the phase change during melting
solid to liquid
thermal energy is increasing
What are physical properties
properties that can be observed using your senses.
(color, shape, size, texture, function, density, state of matter)
What is a mixture
a mixture is made up of two or more types of matter that are combined physically
Describe how particles of matter are arranged in a Liquid
Particles are further apart, and can flow past one another.
What happens to the particles of matter when thermal energy is decreased?
The particles slow down and move more slowly.
describe the phase change during boiling
liquid to gas
thermal energy is decreasing
What happens to matter in a physical change
matter changes physically, but nothing new is created.
it is still the same type of matter
What is a solution
a type of mixture in which substances are completely dissolved and do not separate over time
Describe how particles of matter are arranged in a gas
particles are farthest apart, rarely coming in contact with one another
In which phase of matter are particles moving fastest and why
Particles move fastest in gases because gases have the most thermal energy.
describe the phase change during condensing
gas to liquid
thermal energy is decreasing
what are chemical properties
chemical properties describe how matter changes into new types of matter
you are only able to observe them during a chemical reaction
how are mixtures and solutions similar
mixtures and solutions are made of matter that is physically, not chemically combined
describe how the particles of plasma move
the particles in plasma are electrically charged.
In which phase of matter are particles moving slowest and why
Particles move the slowest in solids because solids have the least thermal energy.
describe the phase change during freezing
liquid to solid
thermal energy is decreasing
what always happens during a chemical reaction
a new substance if formed
how are mixtures and solutions different
in solutions, you cannot see the individual particles because they are dissolved in the substances.
100 grams of liquid freezing to 100 grams of ice demonstrates what concept
Conservation of Matter - matter is still the same; the phase of it has changed
4 grams of a substance and 3 grams of another substance creates a new substance that is 7 grams. What concept does this demonstrate?
Conservation of Mass - mass of 1 substance and mass of another substance will equal the mass of a new substance during a chemical change
What kind of change happens when a new substance is created
a chemical change
What property of matter can be seen when rust occurs
how are elements grouped on the periodic table
elements are grouped by their shared properties