Scientific Method
what is the first step?
ask a question
an example of this is a campfire.
an exothermic reaction
what is an atomic number?
a number that tells you where each element is located on the periodic table; tells you how many protons and electrons are in a given element.
what is the correct format for the Pythagorean theorem?
A2 +B2 =C2
are you done when you get to the last step of the scientific method? why?
no, there are always human error so formal experiments need to be ran multiple times. if you get similar results the experiment shows how accurate your hypothesis is.
this law states that matter is neither created nor destroyed.
the law of conservation of mass.
which group does not react with other elements of the periodic table?
the noble gases
what is earths population as of 2023
8 billion people
find the independent and dependent variable
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
I: different levels of lead in the gasoline
D: amount of pollution produced.
what is the difference between a compound and a molecule?
molecules are pure substances comprised of one element (O2, S8, N2) compounds are mixtures of different elements (CH4, SO4, C6H12O2)
what is a valence electron?
valence electrons are what is transferred or shared between atoms to form bonds.
in what year did world war 2 end?
1945
what bus the independent and dependent variable in this problem?
The height of bean plants depends on the amount of water they receive.
I : the water each plant receives
D: the height of the plant
balance the equation:
___ N2 + ___ H2 = ___ NH3
__1_ N2 + __3_ H2 = _2__ NH3
why don't we use the transition metals when discussing families/groups.
they do not readily form bonds and must be melted together to form different compounds.
what is Mr. Girdner's first name
Chris Girdner
name all steps of the scientific method
1. start with a question
2. form a hypothesis
3. design and perform an experiment
4. gather and collect data
5. form a conclusion
balance the equation:
___ S8 + ___ O2 = ___ SO3
_1__ S8 + __12_ O2 = __8_ SO3
name the 4 groups/ families
from left to right : alkali metals, alkaline earth metals, halogens, and noble gases
what is coach wood's favorite anime (not one piece)
either answer: Overlord or reincarnated as a slime series