8th Grade Science Terms
Earth Science
Accretional Heating
Tier 3uh-KREE-shuhn-uhl HEET-ing
Inner Core
Tier 3IN-er kor
Outer Core
Tier 3OW-ter kor
P Waves
Tier 3PEE wayvz
Planetary Differentiation
Tier 3PLAN-i-ter-ee dif-er-en-shee-AY-shuhn
Radioactive Decay
Tier 3ray-dee-oh-AK-tiv di-KAY
S Waves
Tier 3ES wayvz
Paleomagnetism
Tier 3pay-lee-oh-MAG-ni-tiz-uhm
Continental Drift
Tier 3kon-ti-NEN-tuhl drift
Transform Plate Boundary
Tier 3trans-FORM playt BOWN-dree
Ocean Ridge
Tier 3OH-shuhn rij
Subduction Zone
Tier 3suhb-DUHK-shuhn zohn
Glacier
Tier 3GLAY-sher
Kettles
Tier 3KET-uhlz
Moraines
Tier 3muh-RAYNZ
Outwash
Tier 3OUT-wosh
Plains
Tier 2playnz
Plateaus
Tier 2pla-TOHZ
Tectonic Activity
Tier 3tek-TON-ik ak-TIV-i-tee
Tills
Tier 3tilz
Deltas
Tier 3DEL-tuhz
Erratics
Tier 3i-RAT-iks
Eskers
Tier 3ES-kerz
Floodplain
Tier 3FLUHD-playn
Absolute Dating
Tier 3AB-suh-loot DAY-ting
Index Fossils
Tier 3IN-deks FOS-uhlz
Relative Dating
Tier 3REL-uh-tiv DAY-ting
Law of Superposition
Tier 3law uhv soo-per-puh-ZISH-uhn
rock
Tier 1rok
heat
Tier 1heet
center
Tier 1SEN-ter
move
Tier 1moov
layer
Tier 1LAY-er
push
Tier 1poosh
pull
Tier 1pool
Earth
Tier 1urth
inside
Tier 1in-SYD
surface
Tier 1SUR-fis
change
Tier 1chaynj
time
Tier 1tym
deep
Tier 1deep
interior
Tier 2in-TEER-ee-er
crust
Tier 3kruhst
mantle
Tier 2MAN-tl
convection
Tier 2kuhn-VEK-shuhn
Convection Currents
Tier 3Convection Currents
boundary
Tier 2BOUND-ree
process
Tier 2PROS-es
record
Tier 2REK-erd
energy
Tier 2EN-er-jee
motion
Tier 2MOH-shuhn
structure
Tier 2STRUHK-cher
Seismic Waves
Tier 3Seismic Waves
core
Tier 3kor
asthenosphere
Tier 3as-THEN-uh-sfeer
lithosphere
Tier 3LITH-uh-sfeer
plate tectonics
Tier 3playt tek-TON-iks
divergent boundary
Tier 3dy-VUR-juhnt BOUND-ree
convergent boundary
Tier 3kuhn-VUR-juhnt BOUND-ree
transform boundary
Tier 3trans-FORM BOUND-ree
earthquake
Tier 3URTH-kwayk
volcano
Tier 3vol-KAY-noh
mountain
Tier 3MOUN-tin
trench
Tier 3trench
convection current
Tier 3kuhn-VEK-shuhn KUR-uhnt
constructive process
Tier 3kuhn-STRUHK-tiv PROS-es
destructive process
Tier 3di-STRUHK-tiv PROS-es
long
Tier 1long
old
Tier 1ohld
found
Tier 1found
evidence
Tier 2EV-i-duhns
sequence
Tier 2SEE-kwens
determine
Tier 2di-TUR-min
history
Tier 2HIS-tuh-ree
condition
Tier 2kuhn-DISH-uhn
climate
Tier 2KLY-mit
geologic record
Tier 3jee-uh-LOJ-ik REK-erd
uniformitarianism
Tier 3yoo-ni-form-i-TAIR-ee-uh-niz-uhm
superposition
Tier 3soo-per-puh-ZISH-uhn
relative age
Tier 3REL-uh-tiv ayj
absolute age
Tier 3AB-suh-loot ayj
fossil
Tier 3FOS-uhl
fossil record
Tier 3FOS-uhl REK-erd
radiometric dating
Tier 3ray-dee-oh-MET-rik DAY-ting
erosion
Tier 3i-ROH-zhuhn
sedimentation
Tier 3sed-i-men-TAY-shuhn
strata
Tier 3STRA-tuh
deposition
Tier 3dep-uh-ZISH-uhn
geologic time scale
Tier 3jee-uh-LOJ-ik tym skayl