kaitlynn L
Terms
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- Procedure-
- A written step-by-step plan for an experiment.
- Producer-
- an organism that makes its own food.
- Product-
- a substance formed during a chemical reaction.
- Property-
- any characteristic that can be used to identify and describe matter.
- Proton-
- a particle with a positive charge found in the nucleus of an atom.
- Qualitive data-
- data that is described in words.
- Quantitive data-
- data that is expressed using numbers.
- Radioactive dating-
- measuring the age of a material by comparing the amount of a radioactive form of an element in a rock or fossil with the amount of its decay product. This method gives an accurate date to the material.
- Radon-
- a radioactive gas that is present in some rocks that can cause problems in human health.
- Reactant-
- substances that enter into a chemical reaction.
- Relationship-
- the connection between two different things.
- Relative age-
- the age of an object or even in comparison to another object.
- Reproduction-
- the ability of cells or organisims to make to make more organisms like themselves.
- Resevoir-
- a contained body of water, such as a lake, that is used for drinking water.
- Respiration-
- the process in which organisms use oxygen to release the energy stored in food.
- Ribosome-
- an organelle where protteins are made.
- Risk-
- the chance that a particular action or event could result in something unfavorable, such as a injury or death.
- Risk-benefit anaylsis-
- the process of weighing the potential harm against the potential benefits. Also called trade-offs.
- River-
- A large, flowing stream of water fed by other smaller streams, or tributaries.