Science Vocab
Terms
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- Ecosystems
- communities of living species and their physical environments
- Prediction
- statement that forecasts what would happen in a test situation if the hypotheses were true
- Experimental Group
- identical to control group except is has an independent variable
- Natural Selection
- organisms that have certain favorable traits are better able to survive and reproduce successfully than organism that lack these traits
- Base Units
- one of the fundamental units of measurement that describes length, mass, time, and other quantities and from which other units are derived
- Evolution
- process when the inherited characteristics within populations change over generations, such that genetically distinct populations and new species can develop
- Independent Variable
- manipulated variable
- Resolution
- power to show details clearly in an image
- Tissues
- groups of cells that have similar abilities and that allow the organ to function
- Ecology
- branch of biology that studies organisms interacting with each other and with the environment
- Cell
- smallest unit that performs all life's processes
- Control Group
- provides a normal standard against which the biologist can compare results of the experimental group
- Theory
- set of related hypotheses is confirmed to be true many times, and it can explain a great amount of data
- Transmission Electron Microscope
- a microscope that transmits a beams of electrons through a very thing slice of specimen that can magnify up to 200,000 times
- Metabolism
- sum of all the chemical reactions that take in and transform energy and materials from the environment
- Nose piece
- structure that holds the set of objective lens
- Adaptations
- traits that improve an individuals ability to survive and reproduce
- Scanning Electron Microscope
- microscope that produces an enlarges 3-d image of an object by using a beam of electrons rather than light
- Light Source
- light bulb that provides light for viewing an image
- Experiment
- used to test a hypothesis and its predictions
- Magnification
- increase of an objects apparent size
- Multicellular
- many celled
- Metric System
- a decimal based standard system of measurement that is used by scientist
- Reproduction
- when organisms produce new organisms like themselves
- Organization
- order with an organisms internal and external parts and interaction with the living world
- Homeostasis
- maintenance of a stable level of internal conditions even though environmental conditions are constantly changing
- Hypothesis
- proposed explanation for the way a particular aspect of the natural world works
- Organs
- structures that carry out specialized jobs within an organ system
- Biology
- study of life
- Development
- process by which an organism becomes a mature adult
- Gene
- segment of DNA that contains the instructions for a single trait of an organism.
- Organelles
- tiny structures that carry out functions necessary for the cell to stay alive
- Scientific Method
- when science is characterized by an organized approach to learn how the natural world works
- Stage
- platform that supports a slide holding the specimen
- Biological Molecules
- chemical compounds that provide physical structure and that bring about movement , energy use, and other cellular functions
- Peer Review
- scientists who are experts in the field anonymously read and critique that research paper.
- Dependent variable
- responding variable because of the independent variables effect
- Kingdoms
- another system of grouping organisms divides all life into six major catagories
- Eye piece
- magnifies the image, usually ten times
- Unicellular
- one celled
- Observation
- act of perceiving a natural occurrence that causes someone to pose a question
- Compound Light Microscope
- microscope that shines light through a specimen and has two lenses to magnify an image
- Cell division
- formation of two new cells from and existing cell
- Objective Lens
- enlarges the image of the specimen