Term
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Definition
| the study of living things |
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Term
| What are three (3) ways life science is benefical to living things |
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Definition
1 - fighting diseases (polio, AIDS)
2 - understanding inherted diseases
3 - protecting the environment |
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Term
| What is the SCIENTIFIC METHOD |
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Definition
| a series of steps followed to solve problems |
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Term
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Definition
| any information you gather through your senses |
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Term
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Definition
| an explanation that is based on prior scientific research or oservations |
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Term
| What are the six (6) steps of the scientific method |
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Definition
1 - ask a question
2 - form a hypothesis
3 - test hypothesis
4 - analyze results
5 - draw conclusions
6 - communicate results |
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Term
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Definition
| a statement of cause and effect that can be used to set up a test for a hypothesis |
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Term
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Definition
| anything in an experiment that can influence the experiment's outcome |
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Term
| What is a CONTROLLED EXPERIMENT |
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Definition
| an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group |
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Term
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Definition
| a factor that changes in an experiment in order to test a hypothesis |
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Term
| What are three (3) reasons scientists regularly share their results |
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Definition
1 - allows others to check results
2 - information can be considered by other scientists with similar interests
3 - can strengthen existing hypotheses or can show new ones are needed |
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Term
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Definition
| a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept |
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Term
| List and describe three (3) types of models |
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Definition
1 - physical - an actual object (toy rocket, plastic skeleton)
2- mathematical - uses numbers, equations, or other forms of data (punnett square)
3 - conceptual - used to represent systems of ideas (comparisons, ideas) |
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Term
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Definition
| an scplanation that ties together many hypotheses and observations. They tell WHY things happen. |
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Term
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Definition
| a summary of many experimental results and observations. They tell only WHAT happens. |
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Term
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Definition
| the application of science for proctical purposes; the use of tool, machines, materials, and processes to meet human needs |
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Term
| What is a COMPOUND LIGHT MICROSCOPE |
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Definition
| an instrument that magnifies small objects so that they can be easily seen by using 2 or more lenses. |
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Term
| What is an ELECTRON MICROSCOPE |
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Definition
| a microscope that magnifies images by focusing a beam of electrons |
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Term
| What is the INTERNATIONAL SYSTEM OF UNITS |
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Definition
| the global mesurement system also called the SI or metric system |
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Term
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Definition
| the measure of the size of a surface or a region, is stated in square units |
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Term
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Definition
| the measure of the size of a body or region in a 3-dimensional space, is stated in liters for liquids or cubic units for solids (cm3, mm3) |
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Term
| What are two (2) advantages of using the SI SYSTEM |
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Definition
1 - helps scientists share and compare their observations and results
2 - almost all units are based on units of 10 which makes conversions easy |
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Term
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Definition
| the measure of the amount of matter in an object, the basic unit for mass is kilogram (kg) |
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Term
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Definition
| the measure of how hot or cold something is, celsius is the unit for SI, also can be stated in terms of fahrenheit, and kalvin |
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