Classifying Matter
There are two major categories of matter. What are they?
What are pure substances and mixtures?
Smallest unit of matter
What is atoms?
Rows on the periodic table
Periods
Physical change
Another name for microorganism
Pathogen/microbe/germ
What is elements?
Protons neutrons electrons
Columns on the periodic table
Groups
Change that alters the identity of the substance
Chemical change
Smallest microbe. Requires a host
Virus
What are the two types of mixtures?
Heterogeneous and homogeneous
These two particles are located on the nucleus of the atom
protons and neutrons
Majority of the periodic table is made up of this type of element
Metals
Evidence of a chemical change
(Name any of the following) Color, odor, precipitate, gas, temperature change
Can be treated with antibiotics. Examples of this type of infection are strep throat, food poisoning, UTI, ear infection
Bacteria
What is the difference between a compound and a mixture?
A compound is made of two or more elements chemically bonded/combined. A mixture is made of two or more substances physically combined.
These are the particles that are negatively charged and located outside of the nucleus.
Electrons
This tells how many valence electrons an element has.
Group number
Combining vinegar and baking soda together in a bag caused a temperature change cooling the bag and expanding . Was this a physical or a chemical change?
Chemical change
Fungi
Compare heterogeneous and homogeneous mixtures.
Heterogeneous you can see the parts of the mixture and homogenous looks uniform throughout also known as a true solution
This is the name of the electrons on the outer ring/shell/cloud/orbital of the atom.
Valence electrons
This is what you would do to determine how many neutrons an element has
Atomic mass - atomic number
What kind of reaction is described where heat is absorbed?
Endothermic reaction
These also require a host. Can be treated with antiparasitic medication, and some examples are malaria, tape worm, lice and pin worm
Parasites