Into to Chemistry 2025-26

Mr. Janick

Goal of chemistry

Understand matterand the changes matter undergoes.

matter

anything that has mass and occupies space. will have volume and can be weighed

nonmatter

no mass and does not take up space. includes things like forces, energy, and abstrace concepts such as love.

pure science

used for learning and curiosity

applied science

has a goal driving it like to solve a problem or to develop technology.

organic chemistry

focuses on compounds that have repeating carbon in it.

inorganic chemistry

focuses on compounds that do not have carbon in it. this includes water.

biochemistry chemistry.

focuses on used or produced by living things

envirornmental chemistry

focuses on chemistry and its interaction in the world around us.

pros of chemistry

increases learning, makes life easier, solves problems, and develops technology. example: deveops life saving medicines and vaccines.

cons of chemistry

creates new probelems like pollution, weapons, and abuse.

systematic error

error that would affect all of the data the same way (major error)

random error

error that would effect some of the data such as small fluctuations.

personal error

accidents and carelessness.

scientific significance

the effect of the data must show a change greater than or equal to 5% or affect the test population by 5% or more.

acceptable error

when the expiriment is preformed to confirm a targeted, or accepted theoretical value the experimental data must be less than or equal to 5%

scientific law

a statment that describes an observed natural phenomenon. the observation or experiment has been repeated many times.

scientific theory

a well tested explanation for a natural phenomenon. Explains why the phenomenon occurs. based on evidence.