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Chps 1 & 2 Vocab
Chapters 1 & 2 Vocabulary Words
Term | Definition |
---|---|
Life Science | The study of living things called? |
Model | A representation of an object or system. |
Theory | An explanation that ties together many related facts, observations, and tested hypotheses. |
Area | A measure of how much surface an object has. |
Educated guess | A hypothesis. |
Scientific Methods | The ways in which scientists follow steps to answer questions and solve problems. |
Law | A summary of many experimental results and observations that rarely changes. |
Compound light microscope | An instrument that magnifies small objects so that they can be seen easily. |
Metabolism | The total of all chemical activities a living thing performs. |
ATP | The molecules that carry most of the energy in the cell. |
Stable internal conditions | Homeostasis means maintaining |
Stimulus | A change in an organism's environment that affects the organism's activities. |
Nucleotides | Nucleic acids are large molecules made up of subunits called what? |
Technology | The application of science for practical purposes. |
Variable | A factor that changes in an experiment in order to test a hypothesis. |
Mass | The amount of matter in an object. |
Volume | The measure of the size of a boy or region in a three-dimensional space. |
Controlled experiment | When a control group is compared with one or more experimental groups. |