astrobiologist: A person who studies life everywhere in the universe, including Earth and space.
atmosphere: An envelope of gas surrounding the Earth, another planet, or the Moon.
bacteria: (singular: bacterium) a single-celled organism. They live almost everywhere on Earth, from the bottom of the ocean to the insides of other living things (such as plants and animals). Bacteria are one of her three realms of life on Earth.
biology:Study of living things. Scientists who study them are known as biologists.
cell: (in biology) the smallest structural and functional unit of an organism. They are usually too small to be seen with the naked eye and consist of a watery fluid surrounded by a membrane or wall. Depending on their size, animals are made up of thousands to trillions of cells. Most living organisms, such as yeast, molds, bacteria, and some algae, are made up of only one cell. (
chemicals: A substance formed when two or more atoms combine (combine) in a certain ratio and structure. For example, water is a chemical produced when two hydrogen atoms combine with one oxygen atom.Its chemical formula is H2O. Chemistry can also be used as an adjective to describe the properties of materials that result from various reactions between different compounds.
colleague: A person who works with other people. colleagues and team members.
compression: Pushing on one or more sides of something to reduce its volume.
cyanobacteria: A type of bacteria that can convert carbon dioxide into other molecules such as oxygen.
evolution: (adjective: evolving) Gradual change over generations or over a long period of time. In living organisms, such evolution typically involves random changes to genes that are passed on to an individual's offspring. These may result in new traits such as color changes, new susceptibility to or protection from disease, or different shape features (such as legs, antennae, toes, internal organs, etc.).
fossil: preserved ruins or traces of ancient life. There are various types of fossils. Dinosaur bones and other body parts are called “body fossils.” Things that look like footprints are called “trace fossils.” Dinosaur feces specimens are also fossils. The process by which fossils are formed is called fossilization.
genetically: It has to do with chromosomes, DNA, and the genes contained in DNA. The scientific field that deals with these biological instructions is known as genetics. The people who work in this field are geneticists.
geology: The study of the earth's physical structure and materials, its history and the processes that act on it. People who work in this field are known as geologists. Planetary geology is the science of studying the same about other planets.
film: A barrier that blocks the passage (or flow) of some substances, depending on their size or other characteristics. Membranes are an essential part of filtration systems. Many serve the same functions as the outer skin of the body's cells and organs.
microorganisms: Abbreviation for microorganism. Organisms that are too small to be seen with the naked eye and include bacteria, some fungi, and many other organisms such as amoebas. Most are composed of a single cell.
microbiologist: A scientist who studies microorganisms, the infections they can cause, or the way microorganisms interact with the environment.
microscopic: An adjective that describes something so small that it cannot be seen with the naked eye. A microscope is required to observe objects this small, such as bacteria and other single-celled organisms.
mineral: Crystal-forming substances that make up rocks, such as quartz, apatite, and various carbonates. Most rocks contain a mixture of several different minerals.
photosynthesis: (verb: photosynthesis) The process by which green plants and other organisms use sunlight to produce food from carbon dioxide and water.
shale: A fine-grained sedimentary rock formed by compacting layers of clay-rich sediment over millions of years.
organization: Made of cells, the various types of substances that make up animals, plants, and fungi. Cells within tissues function as units to perform specific functions in living organisms. For example, different organs in the human body are often made from many different types of tissue.
Individual: Something different from others. The only one of its kind.
Source: www.snexplores.org
