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| the study of living things |
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| a series of steps followed to solve problems |
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| an explanation that is based on prior sceientific research or observations |
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| 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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| a factor that changes in an experiment in order to test a hypothesis |
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| a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept. |
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| an explanation that ties together many hypotheses and observations. They tell why things happen. |
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| a summary of many experimental results and observations. They tell only what happens. |
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| the application of science for practical purposes; the use of tools, machines, materials, and processes to meet human needs. |
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| the measure of the size of a surface or a region. It is stated in square units (cm2, km2...) |
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| the measure of the size of a body or region in a 3-dimensional space. It is stated in liters for liquids or cubic units for soilds (cm3, mm3...) |
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| the measure of the amount of matter in an object. The basic unit for mass is kg. |
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| the measure of how hot or cold something is. Celsius is the unit for us(metric). |
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| the smallest unit that can perform all life processes |
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| anything that causes a change in an organism |
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| the maintenance of a constant internal state in a changing environment |
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| when two parents produce offspring that share characteristics of each parent |
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| a molecule present in all living cells, it contains the information that determines an organism's traits (characteristics) |
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| the sum of all chemical activities in an organism |
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| organinsms that make their own food using energy from their surroundings |
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| organisms that eat other organisms or organic matter to get energy |
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| organisms that get energy by breaking down nutrients in dead organisms or animal wastes |
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| substance made when two or more atoms combine |
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| substances made when molecules are not chemically combined |
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| a large molecule made up of smaller molecules called amino acids |
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| molecules made of sugars that are used as a source of energy and are also used to store energy |
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| a molecule that acts as the main energy source for cell processes |
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| a large molecule that holds all of the infromation that a cell needs to make proteins |
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| List the 6 steps of scientific method (in order) |
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| 1-ask aquestion 2-form a hypothesis 3-test hypothesis 4-analyze results 5-draw a conclusions 6-communicate results |
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| What are 3 reasons scientists share results? |
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| 1-allow 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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| List and describe 3 types of models. |
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| 1-physical - an actual object (toy rocket) 2-mathematical - uses nmbers, equations, or other forms of data (Punnette square) 3-conceptual - used to represent systems of ideas (comparisons, ideas) |
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| What are 2 advantages of using SI? |
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Definition
| 1-it 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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| What are the 6 characteristics of living things? |
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| 1-have cells 2-sense and respond to change 3-reproduce 4-have DNA 5-use energy 6-grow and develop |
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| What are the 4 basic needs of organisms? |
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Definition
| Water, air, a place to live (shelter), and food |
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