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APES Basic 2
| Question | Answer |
|---|---|
| Sample Size | The number of completed responses your survey receives. |
| Replication (during experimentation) | Repeating an experiment or a part of it under the same or similar conditions. Replication can increase the reliability, validity, and generalizability of experimental results, but it also has some drawbacks that need to be considered. |
| Theory | A system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained. |
| Surface Tension | The tendency of liquid surfaces at rest to shrink into the minimum surface area possible |
| Capillary Action | When liquid flows through narrow spaces without external forces, such as gravity; rather, the liquid's movement is aided by intermolecular forces present in between the liquid and solid surface |
| Acid | Substance that forms hydrogen ions H+ when dissolved in water. Acids have a sour taste and turn certain dyes red. |
| Base | Substance that forms hydroxide ions OH- when dissolved in water. Bases feel soapy or slippery on the skin and they can turn certain dyes blue. |
| pH | ph- potential hydrogen pH scale ranges from 0 to 14, with 7 being neutral. |
| Chemical reaction | A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction. |
| Law of conservation of matter | During any physical or chemical change, the total mass of the products remains equal to the total mass of the reactants. |
| Carbohydrate | The most widespread organic substances and play a vital role in all life. Made up of molecules of carbon (C), hydrogen (H), and oxygen (O) |
| Protein | Large organic compounds made of amino acids arranged in a linear chain and joined together between the carboxyl atom of one amino acid and the amine nitrogen of another. |
| Lipid | Any of various organic compounds that are insoluble in water. Including fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers. |
| Nucleic Acid | Chemical compounds that are found in nature. They carry information in cells and make up genetic material |
| DNA/RNA | DNA stores genetic information for the cell, whereas RNA codes for amino acids and acts as a messenger between DNA molecules and the ribosomes. |
| Renewable Energy | Energy source that can renewed in our life time. (solar, wind, geothermal) |
| Nonrenewable Energy | Energy sources that can not be renewed in our life time. (Coal, Oil, Petroleum) |
| Chemical energy | Energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are |
| First law of thermodynamics | Energy can neither be created nor destroyed, only altered in form |
| Second law of thermodynamics | Puts restrictions upon the direction of heat transfer and achievable efficiencies of heat engines. The law explains that an isolated system’s entropy will never decrease over time. |
Created by:
Ms.Nez
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