Vocabulary
Colors of light
Prism a cut piece of clear glass or plastic with twoi opposite sides in the sgape of n triangle or other peometric shape.
Spectrum a band of colors produced when light goes throug a prism.
Primary color red,green,or blue ,mixing this colors can produce all the colors of the sprectum.
Primaty pigment magenta ,cyan,yello,,material with any of these colors absorb one primary color of light and reflects the other two.
VOCABULAY
Invisible light
electromagetism: the production of magntism by electricity and the production of electricity by magnets.
Elctromagnetic spectrum: all the wavelegths of visible and invisible light in order from short gammarays to long radio.
Laser: la device that produces a thin stream of light of just a few close wavelengths.
VOCABULARY
What matter is
Mass: the mount of matter in an object.
Volume: the amount of space an object takes up.
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Weight: a measure of the force of gravity between Earth and an object.
density: a measure of how tightly packed matter is,the amount of mass contained in a given volume.
buoyancy: the upward push on an object y the liquid or the object is placed in.
conduct :allow heat or elecricity to flow throught readily.
insulate: not allow heat or electricity to flow through readilly.
Vocabulary
What matter is made of
element : a basic building block of matter a pure substance that cannot be broken down into anything simple.
Compound:a chemical combiation of 2 or more elements ito a single substance.
atom : the smallest unit of an element that still has the properties of the element.
Proton: a particle with a positive charge in the nucleus of an atom.
neutron : an uncharged particle in the nucleus of an atom .
electron : a particle with a negatve charge moving around the ucleus of an atom.
Nucleus : the dense center part of an atom.
Molecule: a group of more than 1 atom joined together that acts like a simple particle .
Vocabulary
Solids,liquids,and Gases.
State of matter: any of the the forms matter can exist.
Melting point: the temperature at which a solid changes state into a liquid..
Boiling point:the temperature at which a liquid changes state into a gas.
Vocabulary
Mixtures and Solutions
Mixture:2 or more parts blended together or more parts blended together yet keept