Julianne
Terms
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- SCIENTIFIC METHOD
- Organized, logical approaches to scientific research.
- ECOSYSTEM
- Community of organisms and the environment they inhabit.
- BIODEGRADABLE
- Able to be broken down into component parts by microorganisms.
- ERATOSTHENES
- Greek mathematician whoused careful observations and simple geometry to determine the circumference of Earth (distance around the Earth)
- VARIABLE
- A factor in an experiment that can be changed.
- BIG BANG THEORY
- Theory that allmatter and energy in the universe was compressed into an extremely small volume that suddenly, billions of years ago, began expanding in all directions.
- ECOLOGIST
- One who studies the complex relationships between living things and their environment.
- GEOLOGIST
- One who studies the origin, history and structure of the solid earth and the processes that shape it.
- METEOROLOGIST
- One who studies the earth's atmosphere.
- ASTRONOMER
- One who studies the universe beyond the earth.
- OCEANOGRAPHER
- One who studies the earth's oceans.
- METEORITE-IMPACT
- Meteor or part of a meteor left after it hits the earth's surface.
- HYPOTHESIS
- Possible explanation of a problem that is based on facts.
- IRIDIUM
- A substance that is uncommon in earth rocks, but common in meteorites.
- LIGHT WAVES
- Light travels in waves. The distance from the crest of one wave to the crest of the next is a wavelength. Each color in the spectrum has a different wave length. Red is longest and violet is shortest. As light passes through prism, each wave length is bent at a different angle and the band of colors results.
- ASTHENOSPHERE
- Zone of mantle beneath the lithosphere that consists of slowly flowing solid rock.
- LITHOSPHERE
- Thin outer shell of the earth consisting of the crust and the rigid upper mantle.
- GEOSPHERE
- The solid earth.
- P WAVES
- One of two types of seismic waves. P waves travel through liquids, solids, and gases.P waves travel faster. The speed and direction is affected by the composition of the material through which it travels.
- S WAVES
- One of two types of seismic waves. S waves travel only through solids.
- LAW OF GRAVITATION
- Principle that the force of attraction between two objects depends on the masses and distance between the objects.
- PERIGEE
- Point in the orbit of a satellite at which it is closest to the earth.
- APOGEE
- Point in the orbit of a satellite at which the satellite is farthest from the earth.
- PERIHELION
- Point in the orbit of a planet at which it is closest to the sun.
- MOHO
- The Mohorovicic discontinuity, boundary between the earth's crust and mantle.
- MASS OF OBJECT
- The amount of matter in an object.
- POLAR ORBIT
- Orbit that passes over the earth's North and South poles.
- GEOSYNCHRONOUS ORBIT
- A satellite in orbit always remains at the same point above the equator and appears to be stationary in the sky.
- GREAT CIRCLE
- Any circle that divides the globe in half.
- LONGITUDE
- Angular distance east or west of the prime meridian.
- LATITUDE
- Angular distance north or south of the equator.
- PRIME MERIDIAN
- The Meridian that passes through Greenwich,England, designated as O
- ATOMS
- Smallest unit of an element.
- IONIC
- ionic bond: bond in which electrons are transferred from one atom to another. ionic compound: compound formed through the transfer of electrons.
- COVALENT
- covalent bond: bond based on the attraction between atoms that share electrons. convalent compound: compound formed from atoms that share electrons.
- NUCLEUS
- Region in the center of an atom that contains the protons and neutrons.
- ELECTRONS
- Subatomic particle with a negative electrical charge.
- PROTONS
- Subatomic particle with a positive electrical charge.
- NEUTRONS
- Subatomic particle with no electrical charge.
- BACKGROUND RADIATION
- Lowlevels of energy evenly distributed throughout the universe.
- RED SHIFT
- Apparent lengthening of the light waves emitted by a star moving away from the earth.
- SALINITY
- The total amount of dissolved salts in the ocean water.
- PLANKTON
- The group of organisms, generally microscopic, that float or drift near the ocean surface.
- PHYTOPLANKTON
-
The group, usually microscopic
plantlike protists that live near the surface of the ocean with the ocean currents. - ZOOPLANKTON
- The group of tiny animals, usually microscopic, that float or drift near the ocean surface.
- SEDIMENT
- Bits of weathered rocks and minerals and pieces of dead plants or animals.
- INVERTEBRATES
- Animals with no backbones.
- PHOTOSYNTHESIS
- The process by which green plants and other producers use light energy to make food.
- NEKTON
- All the free swimming animals that live in the ocean. The nekton group includes such active animals as fish, octopuses, and whales.
- BENTHOS
- All the plants and animals that live on the ocean bottom. The benthos group includes oysters, crabs and coral.
- CHLOROPHYLL
- Chloroplasts contain a green chemical called chlorophyll that is able to capture or absorb the light energy in sunlight.
- RESPIRATION
- The process of using oxygen to release stored energy by breaking down sugar molecules.