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5th TKA Matter Unit

Vocabulary for the matter unit

QuestionAnswer
Something that has mass and takes up space Matter
Something at rest stays at rest unless a force (a push or pull) acts on it Inertia
Have the same composition throughout Pure substances
Cannot be broken down without breaking the atoms apart Elements
Formed by the chemical combination of two or more elements Compounds
Formed when two or more substances are physically combined Mixtures
Evenly distributed mixtures Homogeneous Mixtures
Unevenly distributed mixtures Heterogeneous Mixtures
A type of mixture in which two or more substances are evenly distributed. Something is dissolved in something else. Solution
The substance dissolved. Solute
The substance in which the solute is dissolved. Solvent
The amount of solute that can be dissolved in a certain amount of solvent. Solubility
If a substance cannot dissolve in another substance it is.. insoluble
When a solvent holds all the solute it can normally it is,, Saturated
When a solvent can hold more solute it is.. unsaturated
When a solvent holds MORE than it normally does it is.. Supersaturated
Things that can be measured without changing the kind of matter Physical properties of matter
How a substance changes in the presence of another substance is the property Chemical
Mass, density, temperature, state, electrical conductivity, viscosity are examples of this property physical
flammability, corrosiveness, acidity are examples of this property chemical
This type of change alters the form or size of matter but does NOT change the type of matter physical changes
This type of change rearranges chemical bonds and forms new substances with different properties. Chemical
This type of change CAN be reversed more easily physical
This type of change CANNOT be reversed easily chemical
When something is MORE dense than water it sinks
When something is less dense than water it floats
A measure of how compact matter is compared to the volume. Density
A measure of the cubit units within a solid figure or the amount of fluid a container can hold volume
a measure of the amount of matter or stuff that makes up an object mass
a measure of the pull of gravity on an object's mass weight
a measure of how much thermal energy (heat) an object has temperature
Normal body temperature in degrees Fahrenheit 98.6 degrees
Normal body temperature in Celsius 37 degrees
Boiling point of water in Celsius 100 degrees
Boiling point of water in Fahrenheit 212 degrees
Freezing point of water in Celsius 0 degrees
Freezing point of water in Fahrenheit 32 degrees
Unit of mass gram
Unit of length meter
Unit of fluid volume liter
Unit of solid volume centimeters cubed
Milli means 1/1000
Centi means 1/100
kilo means 1000
deci means 1/10
Going directly from a solid to a gas is called sublimation
Going from a solid to a liquid melting
Going from a liquid to a gas vaporization
Going from a gas to a liquid condensation
Going from a liquid to a solid freezing
When a liquid SLOWLY becomes a gas as the molecules on the top of the liquid gain enough energy to escape evaporation
Protons are what charge positive
Electrons are what charge negative
Neutrons are what charge neutral
The number of protons defines the atom and is called the atomic number
The number of protons PLUS the number of neutrons is the mass number
In a neutral atom the number of protons ____________ the number of electrons equals
An upward force in fluids that opposes gravity buoyant force
Created by: kdcribb
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