Vocabulary
States of Matter
Physical Changes
Chemical Changes
Atoms, Molecules, Elements
100
A change in which the substance itself is still the same substance.
What is physical change?
100
The temperature at which a substance can reach its melting point and freezing point.
What is zero degrees C?
100
At 100 degrees C, water vapor condenses to form what state
What is liquid?
100
This process changes the mass of an IRON bolt.
What is rusting?
100
The smallest particle that can still be identified as the matter it came from.
What is an atom?
200
A chart used by scientists to organize the elements.
What is the periodic table?
200
A substance can reach these two points at 100 degrees Celsius.
What is condensing point or boiling point?
200
A copper penny and a copper kettle have the same...
What is density?
200
Combining vinegar and baking soda process a chemical reaction because it turns it into what kind of gas.
What is Carbon Dioxide?
200
This information on an element tells us how many protons are in an atom
What is the atomic number?
300
A measure of how closely packed an object's atoms are.
What is density?
300
The amount of space an object takes up is its...
What is volume?
300
A combination of two or more substances
What is a mixture?
300
A chemical reaction forms...
What is a new substance?
300
The three particles that are in or around a nucleus are
What are protons, neutrons, and electrons
400
A mixture in which all the parts are mixed evenly.
What is a solution?
400
All matter is made up of tiny particles called.
What are atoms?
400
Three examples of physical changes are
What are...breaking, crushing, cutting, bending, melting, freezing, and boiling
400
Burning the outside of a marshmallow creates this new substance
What is carbon?
400
The dense area on the inside of an atom.
What is the nucleus?
500
A measure of how easily a substance will burn, or combine rapidly with oxygen.
What is combustibility?
500
More matter can be added to a container full of matter of that is in this state.
What is a gas?
500
To find the density of a substance you divide
What is mass divided by volume
500
Another name for Conservation of Matter is, and why
What is Conservation of Mass because if the matter does not change the mass does not change.
500
A water molecule is made up of
What are two hydrogen atoms and one oxygen atom?
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