Atoms
Chemical/Physical Properties
Definitions
Potpourri
100
An atom is the smallest particle of what?
An Element
100
Is a burned tree a chemical or physical property?
chemical property
100
Define Physical Property
A physical property can be seen or measures without changing material.
100
What is an observation?
An observation is when you look at something and write down what you see.
200
Elements are also called ______. It can not be separated into simpler substances.
pure substances
200
Is broken glass a chemical or physical property?
physical
200
What is a chemical property?
A chemical property tells how the substance forms new substances when it mixes with something else.
200
Give 3 examples of physical properties
hardness, color, shape, size, texture
300
The atoms center is called the _______.
Nucleus
300
Is a battery a physical or chemical property?
chemical
300
What is an element?
An element is the building blocks of matter.
300
Give three examples of how you know something has gone through a chemical change
two items are added together and you get something new. gas forms. heat or light appears. color changes
400
What two things are found in the center of an atom?
Neutrons and Protons
400
When ice melts in the sun is it a physical or chemical change?
It is a physical change
400
What is an atom?
An atom is the smallest particle of an element
400
Which part of an atom is positive?
proton
500
What orbits around the center of an atom?
electrons
500
A penny is started to turn color. Is it a physical or chemical change?
Chemical
500
What is the negative charge in an atom called?
An electron
500
Does the neutron have a positive or negative charge?
Neither. It has no charge.
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