Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
organisms
|
is a living human, insect, anything!
|
|
|
uniceller
|
only use a single cell and live off it
|
|
|
multicellular
|
live off of many cells more then 1
|
|
|
development
|
is change that occurs during a living things life
|
|
|
stimulus
|
change around life and make then react
|
|
|
response
|
change in behavior
|
|
|
reproduce
|
have offspring= babys
that r similer to parents |
|
|
spontaneous generation
|
mistaken idea that living and non-living things differ
|
|
|
controlled experiment
|
scientist have 2 tests same except for 1 factor
|
|
|
variable
|
changed factor
|
|
|
rocks
|
made of mixtures of minerals and other materials
|
|
|
igneous rock
|
forms when molten material cools and hardens below or the earths surface
|
|
|
sedimentary rock
|
forms when particles of other rocks or the remains of plants and animals are pressed and cemented together.
|
|
|
metamorphic rock
|
formed when an existing rock is changed by heat, pressure, or chemialcal reactions.
|
|
|
petrified fossils
|
fossils in whcih mimerals replace all or part of an organisim
|
|
|
mold
|
is a hallow area in sediment in the shape of an organims or part of an organims.
|
|
|
cast
|
is a copy of the shape of an organism
|
|
|
carbon film
|
an extremely thin coating of carbon on rock
|
|
|
trace fossils
|
provide evidence of the activites of an acient organism
|
|
|
relative age
|
age that is compared to the ages of ther rocks
|
|
|
absolute age
|
rock that is the # of yrs since the rock formed
|
|
|
extrusion
|
lava that hardens on the surface
|
|
|
intrusion
|
magma cools and hardens into a mass of igneous rock
|
|
|
index fossil
|
a fossil must be widely distributed and represent a type of the organism that existed only briefly.
|
|
|
unconformity
|
is a gap in the geologic record.
|
|
|
atoms
|
allt hematter u c is made up of tiny particles
|
|
|
element
|
all the atoms r the same its
|
|
|
radioactive decay
|
the breakdown of a radioactive element, relesing particles and energy.
|
