States of Matter
What are the three states of matter?
Solid, Liquid, and gas (States of Matter Lab)
Give an example of a solid in the room right now.
Answers vary
What is the formula for solving for density?
Mass/Volume (CK12, Notes, Lab, Worksheet)
Density = 2g/mL, 30/15= 2
What is the name of Miss. Lubbers fiance?
Seth
If something is heated, what is being given to the particles?
Thermal Energy (States of Matter Lab)
What is a characteristic of a solid?
The particles are held tightly together. (CK12)
What is the density of a liquid with a mass of 300grams and a volume of 30mL?
The density is 10g/mL (CK12)
The mass of an object is 80g, the volume is 20mL, what is the density?
Density = 4g/mL, 80/20= 4
A solid is different than a liquid because...
the particles of the liquid have enough energy to partially resist mutual forces of attraction and change the shape (QUIZ)
Why do solids hold their shape?
Because there is little movement between particles
(States of Matter, Prelab question 1)
What are two FIXED parts of a solid?
Fixed volume and fixed shape
What is density?
An important physical property of matter. It reflects how closely packed the particles of matter are. (CK12)
Density = 5g/mL, 100/20= 5
In the PHET simulation, why did the block need to be fully submerged in order to get the most accurate results?
The whole volume of the block must be accounted for
NO (Notes, PHET simulation)
When solids reach their melting point, what do they become?
Liquids
What are the units for density?
g/mL
The mass of an object is 200g, the volume is 50mL, what is the density?
4g/mL
What is the densest thing in outer space?
Why do liquids and gases take the shape of their containers?
Because the particles are loosely packed. They have enough energy to partially resist MFA, but not enough to escape the group (Notes AND States of matter lab)
What are two types of solids?
Crystalline solids (Snowflakes) and amorphous (Cotton Candy) (CK12)
My density is 2g/mL and my mass is 16g, what is my volume?
8mL. D=M/V, 2=16/X, X=8
The density of an object is 10g/mL and the mass is 20g, what is the volume of the object?
2mL, D=M/V, 10=20/x, 20/10 = 2
Solids that have particles that are arranged in a regular repeating pattern occur naturally on Earth in the form of ______________