A pure substance is made up of only 1 kind of particles. Which of the following is a pure substance?
a) water
b) salt
c) sugar
d) all of the above
d) all of the above
200
Liquid to Gas
What is evaporation/vaporization
200
In a solid, the particles are
a) packed together
b) take the shape of a container
c) has the volume of a container
in a solid, the particles are:
a) packed together
200
Which of the following is not matter?
a) water
b) DNA
c) magnetism
d) Heat
d) heat
200
Which of the following is most dense?
a) water
b) oil
c) isopropyl alcohol
d) syrup
d) syrup
200
two or more atoms joined together is called a
a) molecules
b) water
c) particle
d) 2 atoms
a) molecules
300
Liquid to solid
What is freezing
300
T/F Particles in a solid are always in motion
TRUE (particles are always moving....even in a solid, they are moving very slowly)
300
T/F A gas holds shape and has a fixed volume
FALSE
300
A fluid is: ____________
any matter that flows (usually a liquid + gas)
300
A mixture is made up of 2 or more different types of particles. Which of the following is a mixture?
a) air
b) sugar water
c) gold
d) a + b
d) a + b
(air and sugar water contain different particles
400
solid to gas
What is deposition?
400
T/F particles attract each other
TRUE
400
T/F Liquid take the shape of their container and has a fixed volume
TRUE
400
Name 5 fluids that are not liquids
answers may vary
400
T/F Water is made up of 1 atom
FALSE - it is made up of 3 atoms (two hydrogen and 1 oxygen atoms)
500
gas to solid
What is sublimation
500
Draw a picture of how the molecules look in a solid, liquid, gas
(picture in slide)
500
Lightning falls under what state of matter?
What is plasma
500
The mass of iron ball is 15 g and the volume is 3 cm^3. What is the density of the iron ball?
It is 5 g/cm^3
500
A heterogenous mixture is that's made up of 2 or more types of particles that is not uniform.
Which of the following is NOT a heterogenous mixture?
a) pizza
b) chocolate chip cookie
c) pizza
d) water