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8th Grade-SP-Nov

November Spelling Activities for 8th Grade

TermDefinition
biosphere All the living things on Earth and the environments where they live.
ecosystem A community of living things and their environment, interacting as a system.
habitat The natural home or environment where an organism lives.
population All the members of one species living in a specific area.
community All the different populations of organisms living together in one area.
niche The role or job of an organism in its ecosystem, including how it gets food and shelter.
biodiversity The variety of different species and life forms in an area or on Earth.
succession The natural process by which one community of organisms is replaced by another over time.
conservation The careful use and protection of natural resources and the environment.
chemistry The branch of science that studies matter and how substances change.
element A pure substance made of only one kind of atom, like oxygen or gold.
compound A substance made of two or more elements chemically joined together.
molecule A group of two or more atoms bonded together, acting as a single unit.
isotope Atoms of the same element that have different numbers of neutrons.
solution A mixture where one substance is evenly dissolved in another.
solvent The substance in a solution that does the dissolving, often a liquid like water.
reaction A chemical change where substances are turned into new substances.
catalyst A substance that speeds up a chemical reaction without being used up.
equilibrium A balanced state in a system where opposing processes happen at the same rate.
physics The branch of science that studies matter, energy, motion, and forces.
velocity Speed in a specific direction, such as 60 miles per hour north.
acceleration A change in velocity over time, such as speeding up or slowing down.
momentum The quantity of motion an object has, based on its mass and velocity.
inertia The tendency of an object to resist changes in its motion.
friction A force that resists motion when two surfaces rub against each other.
gravity The force that pulls objects toward each other, especially toward Earth.
energy The ability to do work or cause change, such as motion, heat, or light.
wavelength The distance between two matching points on a wave, such as crest to crest.
frequency How many waves pass a point in a certain amount of time.
theorem A statement in mathematics that has been proven to be true.
postulate A basic assumption accepted as true without proof, used as a starting point.
axiom A rule or statement accepted as true and used to build a system of reasoning.
proof A logical argument that shows a statement or theorem is true.
geometry The branch of math that studies points, lines, shapes, and space.
polygon A closed, flat shape made of straight line segments.
isosceles Describes a triangle that has at least two sides of equal length.
equilateral Describes a triangle with all three sides the same length.
perpendicular Describes lines that meet to form a right angle (90 degrees).
parallel Describes lines that are always the same distance apart and never meet.
algebra A branch of math that uses symbols and letters to represent numbers and relationships.
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