Properties of Matter
Anything that has mass and takes up space is known as what?
Matter
What is matter made of
Smaller particles: molecules or atoms
cutting a piece of paper is an example of a _________ change.
physical
When two or more different substances are mixed, a new substance may be formed. This is called a ________ change.
Chemical
The scientific study of what matter is made of and how it changes is known as what?
chemistry
People can use ________ to describe and identify matter. (think color, smell, shape...)
Properties
What is a characteristic of a particle?
too small to be seen
During a physical change, the total ____________ of matter is conserved.
weight, mass, amount
When a chemical change occurs, the total weight of matter does what?
stays the same, is not lost or gained
Matter is made of matter too small to be seen. These are called what?
Atoms
Describe Solubility.
The ability of a substance to dissolve.
What is an example of a particle that makes up matter?
air, molecules of any kind
What are the three states of matter?
solid, liquid, gas.
What is an example of a chemical change?
Cooking/baking, rusting, burning, rotting
Matter made of a single type of atom are called what?
Elementary substance or elements
Color, hardness, Reflectivity, Electrical conductivity, magnetism, and solubility.
blowing up a balloon could be used as a ________ to show particles exist.
Model
In your own words, describe a physical change.
changes physically while staying the same type of matter
How do you know when a chemical change occurred?
gas, change in color, change in odor, change in temperature, emission of light, formation of precipitates
All the atoms of an element are what?
the same, identical
Explain how evidence can be used to describe matter
Describe how observations or measurements of physical properties can be used to describe types of matter
What is an example of evidence that can be used to explain that matter is made of particles too small to be seen?
evaporating liquids, balloon, dissolving a substance
How can you prove that the total weight of matter is conserved during a physical change?
weigh before and after
What kind of evidence os a chemical change would you expect to find when you burn a match?
change in temperature OR emission of light
Describe a molecule
atoms joined to other atoms