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Science Vocab

Dessert Vocabulary for Science Diner Menu

Instrument usedd to meaure mass by balancing weights. triple beam balance
Instrument used to measure volume especially of liquids in mL. graduated cylinder
Container used to hold liquids and occasionally measure volume. beaker
How tightly compacted the atoms in an object are. density
Educated guess, based on observations, about what might happen/what might have happened. prediction
How much matter is in an object. mass
Safety equiptment used to protect your eyes from liquids and flying objects. goggles
How much space the matter in an object takes up. volume
Information gathered using your five senses. observation
Glass tube used for holding liquids. test tube
An educated guess based on observations. inference
A positively charged particle in an atom's nucleus. proton
A particle with no charge in the nucleus of an atom. neutron
A negatively charged particle that orbits the nucleus of an atom. electron
The number of protons and electrons in an atom. atomic number
Atoms of the same element with different numbers of neutrons. isotope
An electrically charged atom caused by the addition or subtraction of an electron. ion
The weight of the matter in an atom. atomic mass
Solids that are reflective, ductile, malleable, and good conductors to the left of the stair-step line. metal
Brittle solids and gases to the left of the stair-step line that are dull and bad conductors. nonmetal
An element that shares properties with both the metals and nonmetals. metalloid
A family of elements vertically in the Periodic Table that share many characteristics. group
A row on the Periodic Table whose elements make a gradual change accross it. period
A substence made up of only one type of atom. element
Metals in groups 3-12 whose number of valence electrons is not equal to the group number. transition elements
Groups 1, 2, and 13-18 whose number of valence electrons is equal to the group number. representative elements
Atoms cannot be created or destroyed, so chemical equations must be balanced to be true. Law of Conservation of Matter
Molecules that are made up of only one type of atom. element molecule
Molecules made up of more than one type of atom. compound molecule
The substances that are put through a chemical change. reactants
The substance that results from a chemical change. products
A way of writing what goes on during a chemical reaction. chemical equation
A faster way of writing the type and quantity of atoms and molecules present. chemical formula
Tells the number of molecules of one type of molecule. coefficent
Tells the number of a certain type of atom in a molecule; chemically bonded, can't change. subscript
The production of a compound by means of a reaction of simpler materials. synthesis
The breaking down of compounds into simpler compounds or pure elements. decomposition
A type of chemical reaction in which an element moves out of one compound and into another. single replacement
A chemical reaction in which a molecule trades an atom for a different atom from another molecule. double replacement
A change in an object's velocity. acceleration
A force that does not cause an object to move because there is an equal force on the opposing side. balanced force
The corse an object moves along. direction
A push or pull. force
An object at rest will stay at rest until an unbalanced force acts upon it. An object in motion will not change its speed or direction unless an unbalanced force acts upon it. Newton's 1st Law
Force=Mass x Acceleration Newton's 2nd Law
For every action, there is an equal and opposite reaction. Newton's 3rd Law
How fast an object is moving. speed
A force that causes an object to move because there is more force on one side than another. unbalanced force
The speed and direction of an object. velocity
The resistance of an object to a change in motion. inertia
A diagram that plots stars based on temperature, spectral type, and brightness. HR diagram
A star in the main band of the HR diagram that is converting hydrogen to helium. main sequence star
A faint, dense star that is one of the last stages of a low-mass star's life. white dwarf star
The second stage of a low-mass star's life when it grows to an enormous size. red giant star
A galaxy that is round or elliptical in shape and does not have spiral arms. elliptical galaxy
A galaxy with no spiral structure or elliptical shape. irregular galaxy
A galaxy with a spiral structure and a central bulge. spiral galaxy
A space measure defined by the distance light travels in a year. light year
Bodies composed of rock and metal that orbit the Sun mainly in a belt between Mars and Jupiter. asteroid
Small bodies of ice, rock, and cosmic dust with tails that orbit the Sun in elliptical pathways. comet
A meteoroid that enters a celestial body's atmosphere. meteor
A meteoroid that strikes the surface of a celestial body. meteorite
A particle of rock and metal smaller than an asteroid that floats in outer space. meteoroid
A creation theory that says an explosion created the universe about 14 billion years ago and it has been expanding ever since. Big Bang Theory
Clouds of dust and gas that form new stars. nebula
Created by: ls123