series of steps that helps us answer questions
a tentative explanation a scientist proposes for a specific phenomenon that has been observed.
test or trial that helps gain knowledge about something unknown
capable of being changed
what is being changed
responds to IV
trial that is kept the same
guessing based on previously gathered knowledge
a prediction to what happened
an outlook from someone else
a large lipid molecule made from glycerol and 3 fatty acids; a triglyceride. Most fats function as energy-storage molecules
a biological molecule that does not mix with water
similar to a fat, but saturated
fat that consists of triglycerides containing only saturated fatty acid radicals.
a polymer consisting of many nucleotide monomers; serves as a blueprint for proteins and, through the actions of proteins, for all cellular structures and activities. The 2 types of nucleic acids are DNA and RNA
an organic monomer consisting of a five-carbon sugar covalently bonded to a nitrogenous base and phosphate group. Nucleotides are the building blocks of nucleic acids
ribonucleic acid, a type of acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases
Deoxyribonucleic acid, the genetic material that organisms inherit from their parents
the many chemical reactions that occur in organisms
the smallest unit of matter that retains the properties of an element
an atom's central core containing protons and neutrons
a substance that can't be broken down by chemical means
group of 2+ atoms held together by covalent bonds
the bond formed by the sharing of a pair of electrons by two atoms
two of the same atoms comes together
shares electrons unequally
a molecule that has opposite charges on opposite ends
type of weak chemical bond formed when the partially positive H atom in one molecule is attracted to the partially negative atom of a neighboring molecule
measure of the acidity
a fluid mixture of 2+ substances
most important element in the world
building block of polymer
large molecule with smaller, identical units
class of biological molecule
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.