Chemistry-8.P.1 Understand the properties of matter and changes that occur when matter interacts in an open and closed container.
-Physical And Chemical Properties
Physical Change-Does Not Form A New Substance
Characteristic that you Can Observe Without Changing the composition of the substance
Chemical Change- One Or More Substances Are Changed Into New Substances That Have New And Different Properties.
Physical Properties-Can Be Observed Or Measured without changing It.
Compound Mixture Element
Element-Building Blocks Of Matter Made Of Atom
Compound-Substance formed when two or more elements chemically combined
Mixture- Combination of two or more different substance that in mixed but not combined.
A Table Of The Chemical Element Arranged In Order Of Atomic Number.
Groups- They Go Vertical Up And Down
Periods- They Go Horizontal From Left To Right
Metals In Periodic Table:
The metals have a moderate range of relativity and a wide range of properties . In general they are shiny and good heat and electricity
Are not able to conduct electricity and heat very well as non-metals. They are very brill
and can not be made into wires or pounded into sheets
Metalloid- are the elements found along the stair-step line that distinguishes metals from non-metals
Atomic Number-Number Of protons and electrons in a atom of 1 element .
Atomic Mass- The Sum of protons and neutrons in the nucleus of an atom
Protons and Electrons Are The Same Number
Protons And Neutrons Are Both Nucleus
Law Of Conservation- It Cant Be Destroyed Or It Cant Be Created
Law Of Superposition- Younger rocks lie above older rocks if the layers have not been disturbed.
Index fossils- A Fossil that is found in the rock layer of only on geologic age and is used to establish age of the rock layer around the world.
Ice core- A Sample of Ice From A Layer To Look At Earths Climate From Many Years Go.
Geologic Time Scale- Scientist Use to know about the old ages of the Earth Different Times In The Past.
Relative Age- of rock giver as the year since the rock formed
Half life- Is The Time Required for Exactly half of the entities to decay
Radioactive decay-process by which a nucleus of an unstable atom loses energy
Microorganism (Virus,Bacteria, Fungi, Parasites)
Virus- small infection that reproduce only inside of living cell and then spreads and can cause disease
Bacteria- Microorganism made up of a single cell that has no distinct nucleus
Fungi- A fungus is any member of a large group of Eukaryota organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.
Parasites- an organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.
Epidemic vs. Pandemic:
Epidemic is a widespread out break of an infectious disease within a small population or community.
Pandemic- is an out break of an infectious disease that affects large populations.
Prevention can be raising awareness, Education on the disease, Good Hygiene, Vaccines/Antibiotics
Treatment can be seen as treating a diseases but different diseases require different treatment
Biotechnology is the use of living systems and organisms to develop or make useful products, or "any technological application that uses biological systems, living organisms or derivatives thereof, to make or modify products or processes for specific use