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Physical Science
| Term | Definition |
|---|---|
| Physical Science | The study of matter and energy |
| Matter | Anything that has mass and takes up space |
| Mass | The amount of material an object has |
| Chemistry | The study of matter and how it changes |
| Physics | The study of how energy acts with matter |
| Unit | A known amount used for measuring |
| Customary | Ordinary or regular |
| Metric System | System of measurements used by scientists |
| Meter | The basic unit of length in the metric system, it is about 39 inches |
| Centimeters | 1/100 of a meter |
| Milimeter | 1/1000 of a meter |
| Meter Stick | Common tool for measuring length in the metric system |
| Kilometer | A metric unit of measure that is equal to 1,000 meters |
| Area | The amount of surface an object has |
| Exponent | A number that tells you how many times a number is a factor |
| Gram | Basic unit in the metric system that starts with the letter G |
| Kilogram | A unit that equals 1,000 grams |
| Milligram | A unit that measures 1/1,000 of a gram |
| Centigram | A unit that measures 1/100 of a gram |
| Cubic Centimeter | A metric unit that means cm*cm*cm |
| Property | Characteristics that help identify an object |
| Atom | The building block of matter |
| Molecule | The smallest part of a substance that keeps the chacteristics of that substance |
| solid | A form of matter that has a definite shape and volume |
| liquid | A form of matter that has a definite volume but no definite shape |
| gas | A form of matter that has no definite shape or volume |
| states of matter | The form that matter has - solid, liquid, or gas |
| plasma | A very hot gas made of particles that have an electric charge |
| Element | matter that has only one kind of atom |
| Compound | A substance that is formed when two or more elements join together |
| Neutron | A tiny particle in the nucleus of an atom that is similar to a proton in size |
| Electrons | A tiny particle of an atom that moves around the nucleus |
| Protons | A tiny particle in the nucleus of an atom |
| Nucleus | The central part of an atom |
| Symbol | One or two letters used to represent an element's name. |
| Tritium | An isotope of hydrogen that has one proton and 2 neutrons |
| Familiy | A group of elements arranged with similar properties and in the same colum |
| Periodic Table | An arrangements of elements by atomic number. |
| Isotope | An element that has a different number of neutrons than protons and electrons. |
| Deuterium | An isotope of hydrogen that has one proton and one neutron. |
| Metal | type of element; usually solid at room temperature, shiny and good conductor |
| Nonmetals | type of element with properties unlike metals |
| Nobel Gases | type of elements made up of gases that do not combine with other materials |
| alloys | a mixture of 2 or more metals |
| Inert | lacking the power to move |
| Chemical Formula | tells the kind of atom and how many of each kind are in a compound |
| Subscript | a number in the formula that tells how many parts are in the compound |
| Radicals | a group of 2 or more atoms that act like 1 atom |
| Energy Level | one of the spaces around the nucleus in which electrons move |
| Binary compound | a compound made of 2 elements |
| Acid | A compound that reacts with metals to produce hydrogen |
| Base | A compound that contains the OH radical |
| pH | A number that tells if an item is a base or acid |
| Motion | A change in postion |
| Distance | The length of the path between two points |
| Speed | The rate at which the position of an object changes |
| Constant Speed | Speed that does not change |
Created by:
Amic
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