Anything that has mass and takes up space.
What is matter?
What all matter is made up of.
What are smaller particles?
Cutting a piece of paper into smaller pieces is an example of this type of change.
What is a physical change?
When two or more substances mix and form a brand-new substance, this has occurred.
What is a chemical change?
The scientific study of what matter is made of and how it changes.
What is chemistry?
Characteristics people use to describe and identify matter.
What are properties?
A key characteristic of individual particles of matter.
What is being too small to be seen?
During a physical change, this total measurement of matter is always conserved.
What is weight (or mass)?
What happens to the total weight of matter when a chemical change occurs.
What is it stays the same (conserved)?
The tiny particles that make up matter which are too small to be seen.
What are atoms?
The ability of a substance to dissolve in another substance.
What is solubility?
An everyday gaseous sample of matter made of unseen particles.
What is air?
The three standard states of matter.
What are solid, liquid, and gas?
Name an everyday example of a chemical change.
What is cooking/baking, rusting, burning paper, or rotting fruit?
Matter made up of only a single type of atom.
What is an element?
Name three physical properties used to describe matter.
What are color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, or solubility? (Accept any 3)
Blowing up a balloon can be used as one of these to demonstrate that air particles exist.
What is a model?
A change in appearance or form where matter remains the same underlying substance.
What is a physical change?
Name three observations that indicate a chemical change has taken place.
What are gas formation, color change, odor change, temperature change, light emission, or precipitate formation?
A key characteristic shared by all atoms belonging to the same element.
What is being identical?
Observations or quantitative measurements of physical properties used to describe types of matter.
What is evidence?
An example of evidence showing that matter is made of particles too small to be seen.
What is inflating a balloon, evaporating liquids, or dissolving a substance?
How you can prove that total weight is conserved during a physical change.
What is measuring the weight before and after the change occurs?
Two distinct pieces of evidence showing a chemical change when burning a match.
What are a change in temperature and emission of light?
Formed when two or more atoms join together chemically.
What is a molecule?