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Physical science
The stud of matter and energy
Question | Answer |
---|---|
Physical science | The study of matter and energy |
Matter | Anything that has matter and take up space |
Mass | The amount of metrical 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 |
Metric system | System of measurement used by scientist |
Meter M. | The basic unit of length in the metric system; it is about 39 inches. |
Centimeter | A metric unit of measure that is 1/100 of a meter. |
Meter stick | A common tool for measuring length in the metric system. |
Kilometer | A metric unit of measure that is equal to 1,000 meters |
Millimeter | 1/1000 of a meter meterstick |
Area | The amount of surface an object has. |
Exponent | A number that tells how many times a number is a factor. |
Centigram | A metric unit of mass, equal to one hundredth of a gram |
Kilogram | The unit of mass |
Milligram | One thousand of a gram |
Gram | Basic unit of mass in the metric system |
Properties | a thing or things belonging to someone; possessions collectively. |
Atom | The building block of matter. |
Molecule | The smallest part of a substance that keeps the characteristics 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 |
State of Matter | The form that matter has-solid, liquid, or gas |
Plazma | 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 atoms of two or more elements join together. |
nucleus | The central part of an atom. |
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 |
Atomic Number | A number equal to the number of protons in the nucleus of an atom |
Mass Number | A number equal to the sum of the numbers of protons and neutrons in an atom of an elements. |
symbles | one or two letter used to represent an elements name |
Periodic Table | an arrangements of elements by atomic number 2. |
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 |
Tritium | an isotope of hydrogen that has one proton and 2 neutrons |
Family | a group of elements arranged with similar properties and in the same column |
metal | One group of elements that is usually solid at room temperature, often shiny, and carries heat and electricity well. |
Alloy | A mixture of two or more metals |
Non metel | One group of elements with properties unlike those of metals. |
Noble Gas | One of a group of elements made up of gases that do not combine with other materials under ordinary conditions. |
Inert | Inactive, lacking the power to move. |
Energy level | One of the spaces around the nucleus in which electron 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 |
Binary compound | chemical compound that contains exactly two different 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 position |
speed-rate | at which the position of an object changes |
distance | the length of the path between 2 positions 4. |
constant speed | speed that does not change |