Basic Science
Termed as an organized way of gathering and analyzing evidence about the natural world
science
smallest units considered to be alive
cells
termed as the basic unit of matter
atom
Monomers join together to form
polymers
The variable that is changed or manipulated in a controlled experiment
independent variable
Termed as a logical interpretation based on what scientists already know, previous experience
inference
Living things maintain a relatively stable internal environment, a process known as
homeostasis
A negatively charged subatomic particle in atoms
electron
Amino acids bond to one another to form a polypeptide chain using what kind of bond
peptide bonds
the variable that is the outcome or whose value depends on another
dependent variable
In a controlled experiment, how many variables are changed at a time?
one
Living things are based on a universal genetic code written in a molecule called
DNA
Atoms of the same element that differ in the number of neutrons are called
isotopes
A mixture in which all the components are evenly spread out
solution
An attraction between molecules of the same substance
cohesion
Termed as a well-tested and highly reliable explanation that unifies a broad range of observations and hypotheses
theory
The combination of chemical reactions through which an organism builds up or breaks down materials is called
metabolism
This type of bond is formed when one or more electrons are SHARED between atoms
covalent bond
what kind of chemical reactions occur spontaneously?
ALL chemical reactions!
the measurement that indicates the concentration of H+ ions in solution
pH scale
What does SI currently stand for in terms of standard units?
International System of Units
Name six characteristics of living things.
1. made up of units called cells
2. ability to reproduce
3. based on a universal genetic code
4. ability to grow and develop
5. ability to obtain and use materials and energy
6. ability to respond to the environment
7. ability maintain a stable internal environment
8. tendency as a group to change over time
Strong forces bind protons (positively charged) and neutrons (no charge) together in the
nucleus
Proteins are polymers of
amino acids
A mixture of water and undissolved materials
suspension