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8th-Grade Science Vocabulary List with Definitions

8th Grade Science Vocabulary List with definitions

Are you in the final year of middle school (8th-grade)? Are you looking for on 8th-grade science vocabulary lists? How exciting!

8th-grade is a challenging year for everyone because it is filled with complex concepts. After all, it is the last year of middle school, and it prepares you to take on high school.
Science is one of the most rigorous subjects you will run into, so it’s always important to stay prepared!
The 8th Grade science vocabulary list is crucial for succeeding in middle school and beyond.
This list will reinforce your knowledge of scientific words  and help you become a master at spelling them.
In high school you will face difficult subjects such as Physics, Chemistry, and Biology where good spelling knowledge is a must. Better to be safe than sorry for those upcoming science tests!

Having recognized the importance of scientific subjects, Spelling Bee Ninja has prepared this vocabulary list just for you. You can practice the spellings of each word through our official Spelling Bee Training System.

List of Basic & Physical 8th-Grade Science Vocabulary

Let’s have a look at the 8th- grade science vocabulary list. You can prepare this list for succeeding in the 8th-grade, and furthermore, teachers can use this list to master their 8th– graders.

CarnivoresEcosystemClimateFossils
CellsEnvironmentAnalyzeHypothesis
AtomsGeneAsthmaVariable
AxisOrganConsumerObservation
ChartsParticleDNAExperiment
Periodic tableAtomic MassAtomic SymbolCoriolis Effect
ChromosomesOrbitDiseaseData
Chemical EnergyAntibioticsDecomposersProton
EarthquakeBacteriaElectronNeutron
BarometerAtomic NumberBioticAbiotic
WeatherAutotrophsHeterotrophsFreshwater
MarineTerrestrialAir massesMicrobe
LawFood webFood chainHazard
MixtureElectromagnetismVelocityGravity
DensityConductionAccelerationInertia
CompoundConvectionBalanced ForcesPitch
Kinetic EnergyRadiationReflectionCircuits
Potential EnergyEnergy TransformationDiffractionReactivity
Electron ShellNoble gasSubatomicConductivity

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Spelling bee ninja made this essential science vocabulary list for 8th– graders. We know these words could be difficult to memorize with understanding the meaning and the context of these words.
Worry no more! We organized the table of definitions of all these words for you.

Definitions of all Science Vocabulary Lists

CarnivoresAn animal that feeds on another animal is called a carnivore. They eat the meat of other animals.
CellsIt’s the smallest structural and functional unit of an organism’s life. Cells are the basic building blocks of all living things.
AtomsAny particle of matter which contains at least one proton. The smallest unit of a chemical element is also called an atom.
AxisA straight central part of a structure to which others are connected. An imaginary straight line that divides the shape equally into two parts.
ChartsA sheet of organized information in a table, graph, or diagram form.
Periodic tableA tabular arrangement of chemical elements organized by atomic number.
ChromosomesA thread-like structure is found in the nucleus of living things. A strand of DNA encoded with genes is also known as a chromosome.
Chemical EnergyThe energy is stored in the bonds of chemical compounds, and this may release during the chemical reaction.
EarthquakeSudden shaking of the ground; A sudden movement of earth lithosphere(earth’s upper mantle and its crust)
BarometerThe scientific instrument is used to measure atmospheric pressure. It measures the changes in the atmosphere like air pressure.
WeatherThe particular state of air and atmosphere on a specific place and in time
MarineThese are related to the sea, like seawater or oceanic, something produced by the sea.
Geology Study of the earth; where geologists study earth rocks and its mantle.
MixtureCombination of different things, adding one substance with another, and making a new solution
DensityIt is a measurement of the quantity of substance or mass per unit volume of a substance. It’s basically a measurement of how tightly matter is packed together in a particular substance.
CompoundIt’s a composition of 2 or more separate elements.  Any substance composed of two or more elements chemically combined with one another but in a fixed proportion.
Kinetic Energy A form of energy that an object has due to its motion. For instance, during walking or falling, you use your kinetic energy.
Potential EnergyThe stored energy is possessed by the relative positions of various parts. For instance, the string has stored energy, and it will have more potential energy in a compressed or stretched state.
Electron ShellIt is the outer part of an atom that surrounds the atomic nucleus. These are simple shells that electrons occupy around their nucleus of atoms.
EcosystemThe place where all the organisms and physical environment interacted with each other; A community of living organisms. It is a relationship between all the living and nonliving things.
EnvironmentThe circumstances, objects, or particular conditions by which someone is surrounded are called their environment.
GeneMade up of DNA, these are basic heredity codes. Genes carry the proteins.
OrganA Group of tissue makes organs and it constitutes a different structural and functional unit.
ParticleA minute and a small portion of any substance. For instance, a particle of the atom.
Atomic MassThe average mass of the atom of an element that we measured. The single mass of an atom or molecule is known as atomic mass.
OrbitA circular path in that one body follows a circling around another body. For instance, the earth makes an orbit around the sun.
AntibioticsA medicine that inhibits the growth of bacteria
BacteriaSimply stated germs; are not visible with the human eye
DataInformation based on the facts is called data
DiffractionChanging in the direction or intensity of light waves while passing through any obstacle.
VelocityThe action or speed of the object; rate of motion
AccelerationChange in velocity with accordance the time
InertiaNo movement, tendency to remain stable or unchanged
Gravity Force of attraction tends to draw bodies together
ReactivityThe condition of being reactive
ConductivityThe ability to conduct or transmit something like heat, sound, or electricity.
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 Pro Tips to Learn the 8th-Grade Science Vocabulary

So, we made a definition list of science words for better understanding. Spelling bee ninja also arranged hard vocabulary words and many other spelling words lists., check them all to become a word master before stepping into High School. You can prepare the science vocabulary list by adding it to our training app.