Properties of Matter
Anything that has mass and takes up space is known as what?
Matter
What is matter made up of?
smaller particles
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 chemical change
The scientific study of what matter is made of and how it changes is known as?
chemistry
People can use ___ to describe and identify matter
properties
What is a characteristic of particles?
they are too small to be seen
During a physical change, the total ______ of matter is conserved
weight or mass
When a chemical change occurs, the total weight of matter does what?
it stays the same, no matter is gained or lost (however some will change into other forms)
Matter is made up of particles 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, etc- answers will vary
What are the three states of matter
solid, liquid, gas
What is an example of a chemical change
answers will vary
Matter made up of a single type of atom is called?
an element
Name three properties of matter
color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, solubility
Blowing up a balloon can be used as a ______ to show particles exist
model
In your own words, describe a physical change
a type of matter can change physically while remaining the same type of matter
How do you know when a chemical change has occurred?
answers will vary
All of the atoms of an element are what?
identical
Explain how evidence can be used to describe matter
observations or quantitative measurements of physical properties of matter can be used as evidence
What is an example of evidence that can be used to explain that matter is made of particles too small to be seen?
inflating a balloon, evaporating liquids, dissolving a substance
How can you prove that the total weight of matter is conserved during a physical change
measure the matter before and after the change occurs
What kind of evidence of a chemical change would you expect to find when you burn a match?
temp change, light emission
Describe a molecule that
Molecules form when atoms join together with other atoms