Science Vocabulary Words

nonflowering plant that produces seeds not enclosed by fruit

blocking the passage of light

a substance that dissolves another substance

energy waves resulting from the movement of Earth's crust

the tiniest and most basic unit of a living thing

lines connecting areas with the same elevation on a topographic map

an ecological community with similar climate and living things

a unit that measures energy and work

a partial shadow during an eclipse

a rod shaped coil of DNA containing the genes of an organism

living parts of an ecosystem such as plants and animals

the division of the nucleus in the cell cycle

the part of a plant where photosynthesis takes place

a dry area of land with little rainfall or vegetation

the brightness of a star as seen from Earth

a measurement of the actual brightness of a star

a particle with no charge in the nucleus of an atom

a permanent change in a genome or chromosome

passage of materials through a cell membrane that doesn't allow all types of molecules to pass

a plant without leaves, stems, and roots

the day of the year in spring when the hours of daylight equals the hours of darkness

an element that has properties of both metals and nonmetals

a large grouping of stars and other matter united by gravity

curved outward

a short unit of DNA that controls the inherited traits of a living thing

positively charged particle in the nucleus of an atom

consisting of even parts

the transformation of matter from a liquid to a gas due to added energy

the portion of the atmosphere closest to the ground

process of oxygen & sugar mixing to produce carbon dioxide & water & releasing excess energy

horizontal layers of sediment

a naturally occurring solid compound found in Earth's crust

the variety of life within an ecosystem

the trembling of a portion of the Earth's crust

reproductive bodies produced by fungi and simple plants

a change of direction in the wind due to the rotation of Earth

consisting of uneven parts

flowering plant that produces seeds incased by fruit

a bodily response that causes redness, soreness and swelling

the uniting of small nuclei to create new nuclei

an environment with extreme winters and mild summers

the splitting of a nucleus, resulting in a release of energy

an atom with different numbers of electrons and protons

the theory that the lithosphere is divided into huge, slow-moving plates

an element that is shiny, can be bent and conducts electricity

the system of the body that wards off disease

a small piece of matter that enters Earth's atmosphere + may glow due to friction with the air

the largest group of living things with common characteristics

organisms with one cell that do not have a nucleus

the moon passing partially or completely through Earth's shadow

evaporation through plant leaves

curved inward

a unit length equal to the distance light travels in 1 year

to arrange objects into groups based on their unique properties

the outer layer of the Earth consisting of the crust & upper part of the mantle

allowing the passage of diffused light

a powerful tide occuring during the full and new moon phases of the moon

meteors that fall to the surface of the earth

a huge, spinning, interstellar cloud of dust and gases

an organic acid that carries the genetic information of all living things

the battle between living things trying to use the same resources to stay alive

the layer of soil directly under topsoil

a giant ocean wave caused by earthquakes below the ocean

the first phase of star formation

a plant with a system designed to move water and nutrients

a part of a cell that contains chromosomes and genes and controls all cell activity

nonliving part of an ecosystem such as temperature and soil

a crack in the Earth's crust along which earthquakes occur

group of living things in a given area interacting with each other + their abiotic environment

the transformation of matter from a solid to a gas

a small, dark shadow that forms during an eclipse

the day in autumn that the number of hours and daylight and darkness are the same

a protein used by the immune system to fight foreign objects

a measurement of how easily a scratch can be made on a mineral

forms on opposite sides of a line that match

a negatively charged particle in an atom

the location on Earth's surface directly above the starting point of an earthquake

a machine that transforms kinetic energy into electricity

the ability to transmit energy