Types of Matter
Properties of Matter
States of Matter
Physical vs Chemical
Density & Energy
100
Matter that is made of only one type of atom
Element
100
Mass and volume are examples of what type of properties?
Physical properties
100
Particles move the fastest in which state of matter?
Gas/Plasma
100
Breaking glass
Physical change
100
Formula for density.
Density = Mass ÷ Volume
200
A mixture where you can see different parts
Heterogeneous mixture
200
What happens to density if mass increases but volume stays the same?
density=(mass)/(volume)
Density increases
200
What state of matter has no definite shape and no definite volume?
Gas/Plasma
200
Cooking an egg
Chemical change
200
If an object floats, what can you say about its density compared to water?
It is less dense than water
300
Air is an example of what type of mixture?
Homogeneous mixture (solution)
300
What tool is used to measure volume of a liquid?
Graduated cylinder
300
What is happening to energy during melting?
Energy is being added
300
Dissolving sugar in water
Physical change
300
What happens to particles when energy is added?
They move faster
400
How are elements and compounds similar?
Both are pure substances
400
A liquid flows very slowly and resists movement. What can you say about its viscosity?
It has high viscosity
400
What state of matter is found in lightning and stars?
Plasma
400
What is one sign of a chemical reaction?
Any: color change, gas, temperature change, etc.
400
Why do gases spread out to fill a container?
Particles move freely and have high energy
500
Give one example of a compound and explain why it is a compound
Can be any but here's an example: Water – made of hydrogen and oxygen chemically combined
500
Explain why density is a useful property to identify substances.
Each substance has a unique density
500
Define and label heat of fusion
#2 The amount of energy needed to turn a solid into a liquid at its melting point
500
Explain the difference between physical and chemical change
Physical = no new substance, Chemical = new substance forms
500
Explain why ice floats on water
Ice is less dense than liquid water