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 ____________ 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.
Properties
What is a characteristic of particles?
They are too small to be seen.
During a physical change, the total __________ of matter is conserved.
Mass or weight
When a chemical change occurs, the total weight of matter does what?
Stays the same/is conserved.
Matter is made up of particles too small to be seen. These are called what?
Atoms
Describe solubility.
The ability for a substance to dissolve.
True or False: The air around us is made up of small particles of matter.
True.
What are the three states of matter?
Solid, Liquid and Gas.
What is an example of a chemical change?
Cooking or baking, rusting, burning paper, rotting a banana, etc.
Matter made up of a single type of atom is called a what?
Element
Name three properties of matter.
Color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, and solubility.
Blowing up a balloon can be used to show that particles exist because ...
Inflating them shows gas has mass and takes up space.
In your own words, describe a physical change.
Any type of matter can change physically while remaining the same type of matter.
What signs tell you a chemical change has occurred?
The formation of gas, change in color, change in odor, change in temperature, emission of light, and formation of a precipitate.
All of the atoms of an element are what?
The same, or identical.
Imagine you ball up a piece of bread. What has happened to the mass and the volume.
The mass has stayed the same, the volume has decreased.
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, and 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?
Change in temperature or emission of light.
Describe a molecule.
Molecules form when atoms join together with other atoms.