7th Grade Science Terms
Physical Science
matter
Tier 1 - BasicMA-tur
atom
Tier 3 - Scientificatom
element
Tier 3 - ScientificEL-uh-muhnt
compound
Tier 3 - Scientificcompound
mixture
Tier 3 - Scientificmixture
mass
Tier 2 - Academicpass
volume
Tier 2 - AcademicVOL-yoom
density
Tier 3 - ScientificDEN-si-tee
solid
Tier 1 - BasicSAH-lid
liquid
Tier 1 - BasicLIK-wid
gas
Tier 1 - Basicpass
plasma
Tier 3 - ScientificPLAZ-muh
state of matter
Tier 2 - Academicstayt uhv MAT-er
physical property
Tier 2 - AcademicFIZ-i-kuhl PROP-er-tee
chemical property
Tier 2 - AcademicKEM-i-kuhl PROP-er-tee
periodic table
Tier 3 - Scientificpeer-ee-OD-ik TAY-buhl
proton
Tier 3 - ScientificPROH-ton
neutron
Tier 3 - ScientificNOO-tron
electron
Tier 3 - Scientifici-LEK-tron
nucleus
Tier 3 - ScientificNOO-klee-uhs
atomic number
Tier 3 - Scientificuh-TOM-ik NUHM-ber
atomic mass
Tier 3 - Scientificuh-TOM-ik mas
isotope
Tier 3 - ScientificEYE-suh-tohp
ion
Tier 3 - ScientificEYE-on
boiling point
Tier 3 - ScientificBOIL-ing point
melting point
Tier 3 - ScientificMELT-ing point
freezing point
Tier 2 - AcademicFREEZ-ing point
solubility
Tier 3 - Scientificsol-yuh-BIL-i-tee
conservation of mass
Tier 3 - Scientifickon-ser-VAY-shuhn uhv mas
model
Tier 2 - AcademicMOD-l
theory
Tier 2 - AcademicTHEER-ee
law
Tier 2 - Academiclaw
molecule
Tier 3 - ScientificMOL-i-kyool
chemical bond
Tier 3 - ScientificKEM-i-kuhl bond
ionic bond
Tier 3 - Scientificeye-ON-ik bond
covalent bond
Tier 3 - Scientifickoh-VAY-luhnt bond
metallic bond
Tier 3 - Scientificmuh-TAL-ik bond
solution
Tier 3 - Scientificsuh-LOO-shuhn
suspension
Tier 3 - Scientificsuh-SPEN-shuhn
colloid
Tier 3 - ScientificKOL-oid
filtration
Tier 2 - Academicfil-TRAY-shuhn
distillation
Tier 2 - Academicdis-tuh-LAY-shuhn
homogeneous
Tier 3 - Scientifichoh-moh-JEE-nee-uhs
heterogeneous
Tier 3 - Scientifichet-er-oh-JEE-nee-uhs
chemical symbol
Tier 3 - ScientificKEM-i-kuhl SIM-buhl
subatomic particle
Tier 3 - Scientificsuhb-uh-TOM-ik PAR-ti-kuhl
energy level
Tier 3 - ScientificEN-er-jee LEV-uhl
orbital
Tier 3 - ScientificOR-bi-tuhl
chemical reaction
Tier 3 - ScientificKEM-i-kuhl ree-AK-shuhn
reactant
Tier 3 - Scientificree-AK-tuhnt
product
Tier 3 - ScientificPROD-uhkt
exothermic
Tier 3 - Scientificek-soh-THUR-mik
endothermic
Tier 3 - Scientificen-doh-THUR-mik
catalyst
Tier 3 - ScientificKAT-uh-list
enzyme
Tier 3 - ScientificEN-zym
activation energy
Tier 3 - Scientificak-ti-VAY-shuhn EN-er-jee
rate of reaction
Tier 3 - Scientificrayt uhv ree-AK-shuhn
temperature
Tier 2 - AcademicTEM-per-uh-cher
concentration
Tier 2 - Academickon-sen-TRAY-shuhn
surface area
Tier 2 - AcademicSUR-fis AIR-ee-uh
law of conservation of energy
Tier 3 - Scientificlaw uhv kon-ser-VAY-shuhn uhv EN-er-jee
kinetic energy
Tier 3 - Scientificki-NET-ik EN-er-jee
potential energy
Tier 3 - Scientificpoh-TEN-shuhl EN-er-jee
thermal energy
Tier 3 - ScientificTHUR-muhl EN-er-jee
electrical energy
Tier 3 - Scientifici-LEK-tri-kuhl EN-er-jee
mechanical energy
Tier 3 - Scientificmechanical energy
radiant energy
Tier 3 - ScientificRAY-dee-uhnt EN-er-jee
nuclear energy
Tier 3 - ScientificNOO-klee-er EN-er-jee
transformation
Tier 2 - Academictrans-for-MAY-shuhn
transfer
Tier 2 - AcademicTRANS-fer
system
Tier 2 - AcademicSIS-tuhm
open system
Tier 3 - ScientificOH-pen SIS-tuhm
closed system
Tier 3 - Scientificklohzd SIS-tuhm
heat
Tier 2 - Academicheet
work
Tier 2 - Academicwurk
power
Tier 2 - AcademicPOW-er
force
Tier 3 - Scientificfors
motion
Tier 1 - BasicMOH-shuhn
friction
Tier 2 - AcademicFRIK-shuhn
gravity
Tier 2 - AcademicGRAV-i-tee
energy conservation
Tier 3 - ScientificEN-er-jee kon-ser-VAY-shuhn
chemical equation
Tier 3 - ScientificKEM-i-kuhl i-KWAY-zhuhn
balanced equation
Tier 3 - ScientificBAL-uhnsd i-KWAY-zhuhn
coefficients
Tier 3 - Scientifickoh-uh-FISH-uhnts
subscript
Tier 3 - ScientificSUHB-skript
oxidation
Tier 3 - Scientificok-si-DAY-shuhn
reduction
Tier 3 - Scientificri-DUHK-shuhn
combustion
Tier 3 - Scientifickuhm-BUHS-chuhn
synthesis reaction
Tier 3 - ScientificSIN-thuh-sis ree-AK-shuhn
decomposition reaction
Tier 3 - Scientificdee-kom-puh-ZISH-uhn ree-AK-shuhn
single replacement
Tier 3 - ScientificSING-guhl ri-PLAYS-muhnt
double replacement
Tier 3 - ScientificDUHB-uhl ri-PLAYS-muhnt
neutralization
Tier 3 - Scientificnoo-truh-li-ZAY-shuhn
acid
Tier 3 - ScientificAS-id
base
Tier 3 - Scientificbays
pH
Tier 3 - Scientificpee-aych
Groups
Tier 2 - Academicgroops
Metalloids
Tier 2 - AcademicMET-uh-loidz
Metals
Tier 2 - AcademicMET-uhlz
Nonmetals
Tier 2 - Academicnon-MET-uhlz
Periods
Tier 2 - AcademicPEER-ee-uhdz
Properties
Tier 2 - AcademicPROP-er-teez
Color
Tier 3 - ScientificKUHL-er
Conductivity
Tier 3 - Scientifickon-duhk-TIV-i-tee
Hardness
Tier 3 - ScientificHARD-nis
Malleability
Tier 3 - Scientificmal-ee-uh-BIL-i-tee
Phases Change
Tier 3 - Scientificfayz-iz chaynj
Viscosity
Tier 3 - Scientificvis-KOS-i-tee
Absorb
Tier 3 - Scientificab-SORB
Ammeter
Tier 3 - ScientificAM-mee-ter
Amplitude
Tier 3 - ScientificAM-pli-tood
Closed Circuit
Tier 3 - Scientificklohzd SUR-kit
Conduction
Tier 3 - Scientifickuhn-DUHK-shuhn
Conductors
Tier 3 - ScientificConductors
Convection
Tier 3 - Scientifickuhn-VEK-shuhn
Current
Tier 3 - ScientificKUR-uhnt
Electric Circuit
Tier 3 - Scientifici-LEK-trik SUR-kit
Electric Potential
Tier 3 - Scientifici-LEK-trik poh-TEN-shuhl
Electromagnetic Waves
Tier 3 - Scientifici-lek-troh-mag-NET-ik wayvz
Energy Transfer
Tier 3 - ScientificEN-er-jee TRANS-fer
Frequency
Tier 3 - ScientificFREE-kwuhn-see
Longitudinal
Tier 3 - Scientificlon-ji-TOOD-n-uhl
Medium
Tier 3 - ScientificMEE-dee-uhm
Parallel Circuits
Tier 3 - ScientificPAR-uh-lel SUR-kits
Pitch
Tier 3 - Scientificpich
Radiation
Tier 3 - Scientificray-dee-AY-shuhn
Reflection
Tier 3 - Scientificri-FLEK-shuhn
Refraction
Tier 3 - Scientificri-FRAK-shuhn
Resistance
Tier 3 - Scientificri-ZIS-tuhns
Series Circuit
Tier 3 - ScientificSEER-eez SUR-kit
Transverse
Tier 3 - Scientifictrans-VURS
Vibrations
Tier 3 - Scientificvy-BRAY-shuhnz
Voltage
Tier 3 - ScientificVOHL-tij
Voltmeter
Tier 3 - ScientificVOHLT-mee-ter
Wavelength
Tier 3 - ScientificWAYV-length
Waves
Tier 3 - Scientificwayvz
Wave Speed
Tier 3 - Scientificwayv speed