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End of the Year Sci

TermDefinition
FOSSIL The preserved remains or traces of ancient organisms.
PANGAEA One massive supercontinent that formed about 300 million years ago.
ATMOSPHERE A mixture of gases that surrounds the Earth.
CLIMATE The average weather in a place taken over a long time.
WEATHER The condition, like temperature, clouds, rain, and wind, of Earth’s atmosphere at a certain time and place.
GREENHOUSE EFFECT A warming of Earth’s surface and the lowest layer of the atmosphere caused by the presence of carbon dioxide, and certain other gases in the air.
TECTONIC PLATES Giant pieces of the lithosphere that form the Earth’s surface.
EARTHQUAKE A sudden shaking and vibration of the earth’s crust that is caused by a release of energy stored in rocks.
ROCK Naturally occurring solid material that is usually made up of one or more minerals.
MINERAL Solid, non-living material found naturally on earth with a definite chemical composition.
VOLCANO An opening in the Earth’s crust where molten rock and gases are erupted.
WEATHERING The process of breaking rocks into smaller pieces over time.
DEPOSITION The dropping off and layering of sediments in a new location.
GLOBAL WARMING A gradual rise in the average temperature of the Earth as a result of the increase in greenhouse gases in the atmosphere.
BIOLOGY The scientific study of life and living organisms.
CELL The basic unit of structure and function of all living things
ECOSYSTEM Living and nonliving things that are interacting in an environment.
FOOD CHAIN A sequence in which energy is transferred from one organism to the next as each organism eats another.
POPULATION Organisms of the same species living in the same area at the same.
TAXONOMY The science of describing and classifying organisms.
GENETICS The branch of science that deals with how traits are passed from parents to offspring.
CHROMOSOMES The DNA molecule is tightly packaged into threadlike strands.
HOMEOSTASIS The ability to maintain a stable internal environment.
DIGESTION The breaking down of food into simpler substances that can be used by the cells.
RESPIRATION The process of taking in oxygen and getting rid of carbon dioxide by inhaling and exhaling.
BOTANY The scientific study of the plant kingdom.
PHOTOSYNTHESIS The process that uses light energy to convert water and carbon dioxide into oxygen and glucose.
MITOSIS A type of cell division that makes exact copies of the original cell.
MEIOSIS A type of cell division that produces reproductive sex cells.
FORCE A push or a pull that causes an object to undergo a change in speed, a change in direction, or a change in shape.
FRICTION A force that opposes the motion of an object.
ENERGY The ability to do work or cause change.
WAVE A disturbance in matter that transfers energy from place to place.
SOUND A form of energy that is caused by the back and forth vibration of the particles.
LIGHT A form of energy that travels in straight lines known as rays and allows us to see.
ELECTRICITY A form of energy that is produced by the movement of electrons between atoms
MAGNETISM The force exerted by magnets when they attract or repel each other
CHEMISTRY The study of matter and its structure and properties.
MATTER Anything that has mass and takes up space.
ATOM The smallest basic unit of matter.
ELEMENT One particular type of atom, and it cannot be broken down into a simpler substance.
MIXTURE A substance made up of two or more different substances physically combined.
TEMPERATURE The measure of the average kinetic energy of all the particles in a substance.
HEAT The energy that is transferred from warmer things to cooler things.
Created by: user-1839664
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