Print double-sided (flip on the long edge) and cut along the dashed lines. Fronts and backs line up.
P.s. Ch 1 Section 4 Origin of Life · Fronts · page 1
LIGHTNING
UNICELLULAR
FOSSIL
ICECAPS
ORIGIN
DIOXIDE
POLAR
ATMOSPHERE
P.s. Ch 1 Section 4 Origin of Life · Backs · page 1
Having or consisting of a single cell
Abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission
A mass of ___ and snow that permanently covers a large area of land (plural)
The remains of a plant or animal that existed in a past geological age and that has been excavated
An oxide containing two atoms of oxygen in the molecule
The place where something begins, where it springs into being
Layer of air around the Earth
Located at or near or coming from the earth's poles
P.s. Ch 1 Section 4 Origin of Life · Fronts · page 2
CARBOHYDRATES
VOLCANIC
PROTEINS
WATER
CARBON
NITROGEN
EXPERIMENTS
ORGANISMS
P.s. Ch 1 Section 4 Origin of Life · Backs · page 2
Igneous rock produced by eruption and solidified on or near the earth's surface
An essential structural component of living cells and source of energy for animals (plural)
Clear liquid we drink that falls as rain
Nutrient in meat and beans that builds muscle (plural)
A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas
An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous ___
A living thing that has the ability to act or function independently (plural)
The act of conducting a controlled test or investigation (plural)
P.s. Ch 1 Section 4 Origin of Life · Fronts · page 3
ANCIENT
CHEMICALS
UNITS
BLOCKS
CELL
FOOD
MUD
OCEANS
P.s. Ch 1 Section 4 Origin of Life · Backs · page 3
Substance used in or made by chemistry (plural)
A very old person
A rectangular area in a city surrounded by streets and usually containing several buildings (plural)
Any division of quantity accepted as a standard of measurement or exchange (plural)
What we eat to get energy and grow
Tiniest unit of living things
Huge body of salt water (plural)
Water soaked soil