| A | B |
|---|
| dependent variable | what can change. |
| observation | any use of the senses to gather information. |
| physical science | the study of matter and energy. |
| model | a representation of an object or system. |
| scientific method steps | 1. ask a question 2.form a hypothesis 3.test the hypothesis 4.analyze the results 5.draw conclusions 6. communicate results. |
| independent variable | things that cannot change.example: time,date,year |
| theory | a unifying explanation for a broad range of hypothes and observations that have been supported by testing. |
| data | any piece of anformation aquired through experimentation |
| matter | anything that has mass and volume |
| law | a summary of many experimental results and observations.Over time a law tells how things work. |
| scientific method | a series of steps that scientists use to answer questions and solve problems. |
| what do physical scientists study? | astronomy,botany,biology,ecology,geology,meterology |
| SI measurment for weight. | kilogram,hecktogram,dekagram,gram,decigram,centigram,milligram |
| SI measurment for liquids. | kiloliter,hecktoliter,dekoliter,liter,deciliter,centiliter,milliliter |
| inference | a guess based on prior knowledge |
| SI measurment for length. | kilometer,hecktometer,dekometer,meter,decimeter,centimeter,millimeter |
| hypothesis | a possible explanation or answer to a question. |
| safety rules | goggles,whiffing,never taste,be nice to animals,carry knives down |
| how do scientists use the scientific method? | 1.make hypothesis 2.test 3.test again 4. collect data 5.collect again |
| meter | the basic unit of length in the SI system |
| area | the measure of how much surface an object has. |
| volume | the amount of space that something occupies or the amount of space that something contains |
| liter | the basic unit of capacity in the metric system. |
| matter | anything that has volume and mass. |
| temperature | a measure of how hot or cold something is. |
| density | the amount of matter in a given space;mass per unit volume. |
| menisus | the curve at a liquid's surface by which you measure you measure the volume of the liquid. |
| kelvin | the SI unit for temperature |
| absolute zero | the lowest possible temperature |
