science study guide

Salinity

• how hot or cold something is

• salt

• how much salt is dissolved in a liquid

• how much matter is in an object

Temperature

• how much "stuff" is in an object

• how hot or cold something is

• how much matter is in an object

• density

Molecule

• the smallest part of a substance

• how much matter is in an object

• how hot or cold something is

• how much salt is dissolved in a liquid

Mass

• how much "stuff" is in an object

• how much matter is in an object

• molecule

• how much salt is dissolved in a liquid

density, salinity, and pressure have what relationship?

• negative

• positive

• both

• neither

air and water molecules do what when they heat up?

• spread out and move around

• stay close together and don't move

• disapear

• air molecules don't exist

higher temp = ?

• high density

• lower density

• lower temp

warm material does what?

• sinks

• rises

• floats

• gets more hot

cold material does what?

• sinks

• rises

• floats

• gets colder