Mid year review

Chemistry, Earth, History, Infectious disease

Chemistry- 8.P.1- Understand the properties of matter and changes that occur when matter interacts in an open and closed container

physical properties: something that you can only observe without changing the composition of the substance

Chemical properties: Something that you can only observe by changing the identity of the thing

Physical change: Any change that does not Involve a change in the substance's chemical identity

Chemical change: Any change in matter that results in the formation of a new chemical substance

Elements: made up of one type of atom, cannot be separated into similar substances

Compound: made up of 2 or more atoms, made of elements in a specific ratio

Mixture: combination of 2 or more pure substances that are held together

periotic table: is organized by increasing the atomic number, it is also divided into 3 categories medals, non medals, and metalloids

Groups and periods: they organize the periotic table

metals, nonmetals, and metalloids: are the types in the table

atomic #, atomic mass, protons, neutrons, and electrons: are the characteristics that make the metals, nonmetals, and metalloids

Law of Conservation of Mass: it states that matter cannot be created nor destroyed; it can only be transferred from state.

Vocab: Chemical properties, periods, Groups, Atomic #, Atomic, and Physical property

Earth History

Law of superposition: Younger rock lies over older rock, so we know which set of rocks are younger

Index fossils: The trace or remaining of the fossil where it used to lay

Ice cores: Ice cores tell us what the weather climate used to be

Geologic time scale: Rocks have history on them so we can find out what lived and happen on earth

Relative and Absolute Dating: Absolute dating provides a computed numerical age in contrast and Relative dating is it provides order and events that had happened

Half-Life/Radioactive Decay: the time taken for the radioactivity of a specified isotope to fall to half its original value

Infectios Diseases

Microorganisms: is the name of the group of diseases

Virus: are not living but they affect living things, a virus needs a host cell to attach to you

Bacteria: has a lack of a true nucleus, and also they have one cell, they also live in oxygen

Fungi: they are living, if you are in moist condition that is where they reproduce

Parasites: they are disease carriers and they are living, they move on there own from one organism to another

Epidemic vs. Pandemic: Epidemic is a disease that is in one location and pandemic is a disease that is located almost around the world

Prevention/Treatment: they are what you do when you get sick, prevention is when you wash your hands to keep the germs away and treatment is what you do when you get sick, medicine

Biotechnology: is the use of living organisms to make useful products

Careers: there are careers in Biotechnology if you like to do that you get paid well

Agriculture, Medicine, Economy: Agriculture is the science or practice of farming, medicine is the science or practice of the diagnosis, and Economy is the wealth and resources of a country or region

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