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