How can we help?

You can also find more resources in our Help Center.

72 terms

Fuggi Midterm Review

STUDY
PLAY
ten
metric system is based on this number
meter
standard unit of distance measuring in the metric system
liter
standard unit of measuring volume in the metric system
gram
standard unit of measuring weight(mass) in the metric system
mass
the amount of matter in an object
obervation
start of all science
hypothesis
an educated guess
variable
the thing that we change in a controlled experiment
one variable at a time
makes for the best experiments
organisms
living things
homeostasis
one of the seven characteristics of living things that means organisms are able to actively maintain a stable internal environment
adaptation
a living thing is able to change to fit in an environment
cell
the building block on which all life is based
unicellular
the simplest forms of life
lowest objective
start with this objective when using a microscope
cells
make up all living things
atoms
building blocks of matter
matter
anything with mass and occupies space
protons
subatomic particles that have a positive charge
nucleus
found in the center of an atom and is made up of protons and neutrons
electrons
subatomic particles that have a negative charge
neutons
subatomic particles that have a neutral charge
electron cloud
made up of orbitals and surrounds the nucleus
element
pure or single type of atom
molecule
can be a single or group of attached atoms
atomic number
the number of protons in an atom
nucleus
the central core of an atom
atomic mass
the number of protons plus the number of neutrons
neutrons
always equal the number of protons
Periodic Table
lists elements according to their properties
orbitals
energy levels around the nucleus where electrons are arranged
valence electrons
the only electrons that matter in making bonds
phase
a changeable state of matter
gas
fills entire space of container it is in and has an indefinite shape and volume
solid
has a definite shape and volume
liquid
has no shape but definite volume and takes the shape of it's container
chemical
any substance having a defined composition and properties
bonding
involves the sharing or transferring of valence electrons
ionic
a bond where an atom mostly transfers its electrons
covalent
a bond where an atom shares electrons
outer shell
atoms always want this empty or full
mitochondria
supplies energy to the cell
ribosomes
protein factories of the cell
endoplasmic reticulum
acts as a "highway" or canal system for intracellular movement of substances
golgi apparatus
processes and packages substances produced by the cell
lysosome
digests molecules, old organelles, and foreign substances ("clean-up crew")
cytoplasm
area between the nucleus and the cell membrane
cell membrane
this regulates what comes in and goes out of a cell
nucleus
control center of the cell and stores hereditary information
vacuole
stores cellular waste and excess water in the cell
cell wall
this gives structural support and controls water pressure inside plant cells
living things are composed of cells
Example:the smallest living organisms are made up of a single cell
living things maintain homeostasis
Example: humans have an internal temperature of 98.6 degrees
living things display heredity
Example: some students look just like their parents; paleontologists compare genetic material from extinct animals to animals living today
living things grow and develop
Example:a baby elephant gains weight ; human babies walk at around 10 months
living things reproduce
Example:fish lay millions of eggs; a human stays pregnant for nine months; a women had 15 children
living things require energy
Example: the baby wanted to eat every 2 hours
living things adapt
Example: even though the deer lost its leg it still survived
living things respond to stimulus
Example: the dog ran to the kitchen when ever he heard the can opened; when the deer smelled the hunter he ran away
experimental
the group in an experiment that is purposely manipulated
control
the group in an experiment not manipulated (the "standard", it stays the same)
variable
the "factor" the scientist purposely changes in an experiment
quantitative
the kind of data that can be counted or measured
qualitative
data that are descriptive and involve characteristics that can't usually be counted
hypothesis
an educated guess
scientific method
the method all scientists use to carry out their research or use to answer their questions
order of the scientific method
1. make an observation 2. form hypothesis 3. set up experiment 4. record and analyze 5. draw conclusion 6. publish results
coarse adjustment knob
the knob one should always start with when first focusing a microscope
chloroplasts
the organelle where photosynthisis takes place
oxygen
gas that is a product of the process of photosynthesis
water
a reactant of photosynthesis
carbon dioxide
gas that photosynthesis removes from the air