Vocabulary #4

Element:  a basic building block of matter; a pure substance that cannot be broken down into anything simpler.

Compound:  a chemical combination of two or more elements into 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 negative charge moving around the nucleus of an atom.

Nucleus:  the dense center part of an atom.

Molecule:  a group of more than one atom joined together than acts like a single particle.

Vocabulary#3

Mass:  the amount of matter in an object.

Volume:  the amount of space an object takes up.

Weight:  (on Earth) 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 by the liquid (or gas) the object is placed in a given volume.

Conduct:  allow heat or electricity to flow through readily.

Insulate:  not allow heat or electricity to flow trough readily.

Vocabulary #2

Electromagnetism:  the production of magnetism by electricity and the production of electricity by magnets.

Electromagetic Spectrum:  all the wavelenghts of visible and invisible light in order from shot (gamma rays) to long (radio).

Laser:  a device that produces a thin stream of light of just a few close wavelenghts.

 

Vocabulary # 1

Prism: A cut piece of clear glass( or plastic) with 2 opposite sides in the shape of a triangle or other geometric shape.

spectrum: A band of colors produced when light goes through a prism.

Primary color: Red, green, or blue; mixing these colors can produce all the colors of the specrum.

Primary Pigment: Magenta, cyan, yellow; material with any of these colors absorb one primary color of light and reflects the other 2.