Matter Flashcards
What is matter?
Anything that has mass or volume
What is mass?
The amount of matter in a substance or object
What is volume?
The amount of space a substance or an object occupies
What is a chemical change?
A change in matter that occurs when substances combine to form new sunstances
What is a physical change?
A change in which no new substances form
What does the kinetic molecular theory explain?
It explains what happens to matter when the kinetic energy of particles changes
What are the 4 points of the kinetic molecular theory?
- All matter is made up of very small particles
- There is empty spaces between particles
- Particles are constantly moving
- Energy makes particles move
What is a pure substance?
A substance that is made up of only one kind of matter
What is an element?
A pure substance that cannot be broken down or separated into simpler substances
What is a compound?
A pure substance composed of at least two elements combined in a specific way
