Definitions of matter
What is Matter?
Anything that has a mass and volume
What is mass?
The amount of matter in an object
What is another word for heat energy?
Thermal Energy
Which state of matter has particles tightly packed together?
Solid
Why does ice melt in your hand?
Heat transfers from your hand to the ice
What are the two main properties of matter?
Mass and volume
What is volume?
The amount of space an object takes up
Name 1 way heat can transfer
Conduction, Convection, Radiation
Which state of matter flows and takes the shape of the container?
Liquid
What rises to the top warm air or cool air?
Warm air is less dense than cold air - so warm air or water will rise and cool will fall
What is the difference between an object and matter?
And object is the thing made up of matter, matter is the substance all onjects are made of
If something has a high mass but small volume what would this mean? Is the object dense or not dense?
Its MORE dense
What is radiation? Give an example
Transfer of heat through electromagnetic waves (no contact)
Name the three states of matter
Solid, Liquid, Gas
Name 3 signs of a chemical change
Color change, temp change, odor, new substance
What type of energy causes a solid to become a liquid?
Thermal Energy (Heat)
What two changes can happen to change the mass or volume of an object
Physical and Chemincal changes
Why do dark colored objects feel warmer in the sunlight?
They absorb more radiation energy
What is it called when a gas turns into liquid
Condensation
If you break a pencil in half is that a physical change or chemical change?
Physical - the material is still the same
What's the difference between a chemical and physical property
Chemical = new substance - Physical is observed without changing the substance
What happens to the volume of a gass when it is heated up?
It increases (expands)
Which direction does heat flow?
From warmer objects to cooler ones
What state of matter has no definite shape of volume?
Gas
You have two boxes that look the same. How could you tell which one has more matter?
Measure and compare their mass. The one with more mass has more matter.