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7th grade science
Chapter 1
| Question | Answer |
|---|---|
| experiment | using technology to make a hypothesis |
| scientific methods | procedures used to solve problems and answer questions |
| hypothesis | prediction that can be tested |
| control | standard to which the outcome of a test is compared |
| variable | something in a experiment that can change |
| theory | explanation of things or events based on science knowledge resulting from many observations and experiments |
| law | statement about how things work in nature that seems to be true consistently |
| raw materials | substances need by organisms that carry on life |
| organism | any living thing |
| cell | smallest unit of organism that carry on life |
| homeostasis | regulation of a organism internal life-maintaining conditions |
| contaminate | to make impure by coming in contact |
| spontaneous generation | living things come from nonliving things |
| biogenesis | theory that living things form from other living things |
| common name | nonscientific term vary region to region |
| phylogeny | evolutionary history over organism, broke into six kingdoms |
| kingdom | first & largest category used to classify organism |
| binomial nomenclature | two-word naming system that gives all organisms their scientific name |
| genus | first word of the two-word scientific name used to identify a group of similar species |