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ACT Science

Amino Acid Amino acids are biologically important organic compounds composed of amine and carboxylic acid functional groups, along with a side-chain specific to each amino acid
Asteroid a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles
Mass a coherent, typically large body of matter with no definite shape.
Beta Particles a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.).
Biomass the total mass of organisms in a given area or volume
Biosphere the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
Bog wet muddy ground too soft to support a heavy body.
Buoyancy the ability or tendency to float in water or air or some other fluid.
Calcite a white or colorless mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as limestone, marble, and chalk, can occur in crystalline form
Capacity the maximum amount that something can contain
Capillary any of the fine branching blood vessels that form a network between the arterioles and venules.
Carbon Dioxide a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.
Carbonate a salt of the anion CO32–, typically formed by reaction of carbon dioxide with bases.
Chromatid each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Chromosome a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Climatic relating to climate.
Comet a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
Condensation water that collects as droplets on a cold surface when humid air is in contact with it.
Cytoplasm the material or protoplasm within a living cell, excluding the nucleus.
Denature destroy the characteristic properties of (a protein or other biological macromolecule) by heat, acidity, or other effects that disrupt its molecular conformation.
Density the degree of compactness of a substance
Diffuse spread or cause to spread over a wide area or among a large number of people.
Ecology the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
Ecosystem a biological community of interacting organisms and their physical environment.
Erosion the process of eroding or being eroded by wind, water, or other natural agents.
Extinct (of a species, family, or other larger group) having no living members.
Flask a narrow-necked glass container, typically conical or spherical, used in a laboratory to hold reagents or samples.
Glacier a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.
Landmass a continent or other large body of land.
Lava hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
Created by: Sage_Weber