That's just a theory
Constant means to...
stay the same
What is matter?
Anything that takes up space and has mass.
What is Freezing?
the change from a liquid to a solid
What does the atomic number represent?
Protons or Electrons
What is the formula for Density?
Density = Mass / Volume
What is the symbol for H?
Hydrogen
What is my email?
imartinez218@ccc.edu
How do you test your hypothesis?
Don't overthink it
Experiment
What is a solid?
Matter that has a definite shape and volume
What is boiling?
the change from a liquid to a gas
Lithium has an atomic number of 3, Atomic Mass of 7, 4 neutrons and 3 electrons.
How many protons are there?
3 protons
A 10.0 cm3 sample of copper has a mass of 89.6 g. What is the density of copper?
8.96 g/cm3
What is the symbol for Platinum?
PT
What is my full name?
BTW never call me this 😡
Ivan Martinez
Since the speed of light is greater than the speed of sound, a lightning bolt is seen before the thunder is heard. The underlined part of the sentence is best described as
Theory
a hypothesis
an observation
an assumption
3. An observation
What is liquid
matter that has a definite shape and volume
What is condensation?
the change from a gas to a liquid
Silicon has an Atomic Mass of 28, 14 protons, 14 neutrons and 14 electrons.
What is the Atomic Number?
14
A block of wood has a volume of 27 cm3 and has a mass of 27 g. What is the density of the block?
1 g/cm3
What does I stand for?
Iodine
Name everyone in the classroom?
Do students that drink 1 cup of coffee before class get better grades than students that don't drink 1 cup of coffee?
Find the Independent and Dependent Variable?
IV = 1 cup of coffee before class; DV =better grades
What is gas?
matter with no definite shape and no definite volume
What is vaporization?
the change from a liquid to a gas
When you add protons and neutrons what do you get?
Atomic Mass
DAILY WAGER!!!!!
A rock has a density of 4 g/mL and a mass of 16 g. Find the volume of the rock.
Volume is 4 mL
What does BA stand for?
Barium
What is the area of a rectangle that has a length of 8 in and width of 12 in?
Area is 96 in2
A harmless substance given as the “control” or comparison in an experiment.
A placebo
Give an example of Sublimation
Dry Ice
What is melting?
the change from a solid to a liquid
Hydrogen has an atomic number of 1, Atomic Mass of 1, 1 proton and 1 electron.
How many neutrons are there?
0
An unknown substance from planet X has a density of 10 g/mL. It occupies a volume of 80 mL. What is the mass of this unknown substance?
800 g
What is the symbol for silver?
Ag
Grab a piece of paper.
First person to make it into the garbage can wins the points.
Who won?
What is the Independent Variable and a Dependent Variable?
Independent variable: the thing being tested/the cause
Dependent variable: the result/effect of test
Give an example of Gas turning into liquid
Answers vary
Double POINTS!!!!
What is Sublimation?
The process in which solids directly change to gases
Chlorine has an Atomic number of 17, 17 neutrons, 17 protons and 18 electrons.
What is the atomic mass?
Atomic mass is 35
Five mL of ethanol has a mass of 3.9 g and 5.0 mL of benzene has a mass of 4.4 g. Which is denser?
Hint: mL is the volume
Benzene is denser
What is the symbol for Gold?
Au
Rock, paper scissor vs. each other
whooooooo won????