MYSTERY
What are the 3 states of matter (that you need to know for Grade 6)?
Solid, Liquid, Gas
What is the state of matter with:
a definite shape and volume
SOLID
What is the melting point for ICE?
0 degrees celsius
What is the process of DECREASING the temperature of a substance which would cause the particles to move SLOWER?
COOLING
What is the order of LEAST dense to MOST dense?
Solid, Gas, Liquid
Gas --> Liquid --> Solid
What is the process of changing matter from one state (solid, liquid, gas) to another called?
PHASE CHANGE
What is the state of matter with:
no definite shape or volume
GAS
What temperature is considered Room Temperature? (in Celsius)
22 degrees Celsius
What process happens when we HEAT up matter, making the particles move FASTER and spread apart, which then causes the material to take up MORE space?
EXPANSION
What is the relationship between the mass of the substance and how much space it takes up (volume)?
DENSITY is the relationship between mass and volume of a substance.
What is a tool that measures temperature by the expansion and contraction of a liquid (usually mercury)?
THERMOMETER
What is the state of matter with:
a definite volume but NO definite shape
LIQUID
Which point is the temperature when a liquid turns into a gas?
And what is that temperature? __ degrees celsius
BOILING Point
100 degrees celsius
What is the process of INCREASING the temperature of a substance which would cause the particles to move FASTER?
HEATING
What is the EXCEPTION to the rule of:
"A solid form of a substance is more dense than the liquid form of a substance."
Ice / Water is the EXCEPTION!
Solids are usually more dense than its liquid counterpart, so they tend to sink in the liquid.
What are the forces that pull particles together?
ATTRACTIVE FORCES
What is the theory of how matter is made up of tiny particles that are always in motion?
PARTICLE MODEL OF MATTER
Which point is the temperature when a liquid turns into a solid?
And what is that temperature? __ degrees celsius
FREEZING Point
0 degrees celsius
What process happens when we COOL down matter, making the particles move SLOWER and come closer together, which then causes the material to take up LESS space?
CONTRACTION
What is the equation for Density?
Density = (Mass) / (Volume)
Density is Mass divided by Volume