Science Vocabulary Study Guide

omnivore
eats plants and animals
herbivore
Eats only plants
proton
positively charged particle in the nucleus of an atom
electron
negatively charged particle circulating around the nucleus
neutron
an elementary particle with 0 charge and mass about equal to a proton, particle with no charge
atom
basic unit of matter
molecule
smallest unit of most compounds
cells
The building blocks of all living things
chloroplast
an organelle found in plant and algae cells where photosynthesis occurs
cytoplasm
a jellylike fluid inside the cell in which the organelles are suspended
mitochondira
power generators, “power house of the cell”
nucleus
control center of the cell
exothermic
energy given off; hot
radiaton
transfer of energy through electromangnetic waves
absorption
Not reflecting, but absorbed
transformation
the act of changing in form or shape or appearance
warm blooded
Having a body temperature that stays the same, regardless of the surrounding temperature.
mammal
any warm-blooded vertebrate having the skin more or less covered with hair
invertbrate
An animal without a backbone
compound
a whole formed by a union of two or more elements or parts
organ
a structure that is made up of tissue that does a specific job
organ system
group of organs that work together to perform a specific function
energy
The ability to do work
conduction
the transfer of energy as heat through a material
convection
transfer of heat that occurs in a gas or a liquid
work
somthing moved by a force
force
a push or a pull
friction
the rubbing force between two objects
transparent
allowing most light to come throught
opaque
no light can pass through
translucent
only some light can come through