Question | Answer |
Science | is the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested |
Scientific Method | is a series of steps followed to solve problems |
Hypothesis | is an explanation that is based on prior scientific research or observations and can be tested |
Controlled Experiment | is an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group |
Variable | is a factor that changes in an experiment in order to test a hypothesis |
Model | is a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept |
Theory | is an explanation that ties together many hypotheses and observations |
Law | is a summary of many experimental results and observations; a law tells how things work |
Meter | is the basic unit of length in the SI |
Area | is a measure of the size of a surface or region |
Mass | is a measure of the amount of matter in an object |
Volume | is a measure of the size of a body or region in three-dimensional space |
Temperature | is the measure of how hot (or cold) something is |
Density | is the ratio of the mass of a substance to the volume of the substance |
Zoologist | is a person who studies the lives of animals |
Geochemist | is a person who specializes in the chemistry of rocks, minerals, and soil |
Oceanographer | is a person who studies the ocean |
Volcanologist | is a person who studies volcanoes |
Factor | is anything that can influence an experiment's outcome |
International System of Units (SI) | is a global measurement system used by most scientists around the world |
Significant Figures | are the digits in a measurement that are known with certainty |
Metric Ruler | is used to measure length in SI units |
Graduated Cylinder | is used to measure the volume of a liquid in SI units |
Digital Scale | is used to measure mass in SI units |
Density | equals mass divided volume |
Area | equals length times width |
Thermometer | is used to measure temperature in SI units |
100 degrees Celsius | is the temperature at which water boils |
0 degrees Celsius | is the temperature at which water freezes |
37 degrees Celsius | is our normal body temperature |