40 terms

# Chapter 1

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Science
A process of gathering knowledge about the natural world.
Physical Science
The study of matter and energy
Matter
Something that has volume and mass
Chemistry
The study of all forms of matter, including how matter interacts with other matter.
Physics
The study of energy and how energy affects matter.
Meteorology
The study of the Earth's atmosphere, especially in relation to weather and climate.
Geology
The study of the origin, history, and structure of Earth.
Geochemist
A person who specializes in the chemistry of rocks, minerals, and soil.
Biology
The scientific study of life and of living organisms.
Scientific Methods
A series of steps followed to solve problems.
Observation
The process of obtaining information by using the senses.
Hypothesis
An explanation that is based on prior scientific research or observations and that can be tested.
Controlled Experiment
Compares the results from a control group with the results from the experimental groups.
Variable
The thing that is different between the controlled group and the experimental group.
Data
Any pieces of information acquired through observation or experimentation.
Model
A pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
Theory
An explanation for many hypotheses and observations.
Law
A summary of many experimental results and observations.
Mass
The amount o matter in an object.
Volume
The amount of space that something occupies
Density
The amount of matter in a given volume.
Temperature
A measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object.
Matter
Anything that has mass and takes up space.
Volume
A measure of the size of a body or region in three-dimensional space.
Meniscus
The curve at a liquid's surface by which one measures the volume of the liquid.
Mass
A measure of the amount of matter in an object
Weight
A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe.
Independent Variable
changes that occur in an experiment that are directly caused by the experimenter
Dependent Variable
changes that occur due to independent variables. Measured in an experiment
Constant
During an experiment, this remains the same and is not changed.
Manipulated Variable is also called....
Independent Variable
Responding Variable is also called.....
Dependent Variable
Conclusion
Written to summarize the results of an experiment
Conceptual Model
Systems of ideas
Mathematical Model
Made up of mathematical equations and data
Physical Model
a smaller or larger physical copy of an object
Chemistry and Physics
2 Main branches of Physical Science
Meter
Basic unit of length in Science
Liter
Basic unit of volume in Science
Gram
Basic unit of mass