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Trees: Glossary

A

abundant
plenty
atmosphere
the gases surrounding our planet

B

bark
the strong outer layer of the trunk of a tree
breathe
the process that brings oxygen into our lungs and expels carbon dioxide

C

camouflage
to hide by blending in with surroundings
carbon dioxide
a poisonous gas in our atmosphere
chemicals
a substance with a specific molecular structure - used in chemistry
chlorophyll
the green chemical in plants which helps them create their own food
complex
complicated
condense
water that changes from vapor back to liquid
coniferous
trees that grow pine cones
consequences
results
crucial
important

D

deciduous
trees that grow leaves
deforestation
the process where forests are destroyed
droughts
a lack of rain water for a season

E

endangered
in danger of becoming extinct or non-existent
erosion
the moving of soil by wind, rain, or other
evaporate
a process of the water cycle where water turns to vapor
evergreen
trees that stay green all year
exhale
part of the breathing process - emits carbon dioxide

F

factories
places where products are created
filter
to separate out
fungus
a group of organisms that includes yeast and mold

G

gravity
the natural attraction of objects on each other - specifically the attraction that keeps matter on the earth

H

high blood pressure
the pressure of blood being pushed against the body's blood vessels too strongly

I

industries
businesses

M

matured
grown to an age required for a specific purpose
medicine
products that work to cure or improve health
mining
the act of removing valuable resources from the ground, such as coal or gold

N

needles
part of a tree similar to a leaf, but long and thin and grows in clumps
nourish
feed

O

oxygen
gas found in the atmosphere that most living organisms need to survive

P

particles
small pieces
photosynthesis
the process used by plants to convert sunlight into sugar
pollutants
unhealthy particles in the air
precipitation
rain, snow, hail, or sleet
predators
animals that hunt other animals
protection
keep safe

R

resources
a source or supply of something needed
rigid
unbending - strong

S

species
a group of related life
stress
physical, mental or emotional response to events
surgery
an operation

T

transpiration
the giving off of moisture by plants - similar to breathing

W

water cycle
the process by which water changes to water vapor through evaporation, condenses, and then falls back to the earth as precipitation
wildlife
plants and animals that are not tame
windbreak
a growth of plants - often in a row - meant to slow the effects of wind
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