8th+Test+Prep+-+Science

=Science Vocabulary -=

Classroom Review Game:

=**__Energy Transformation:__**=

media type="custom" key="20617615"

=Study Guide= media type="custom" key="9055224" = = = = =**__Cells Unit:__**=


 * __Word Dynamo Website:__**

Cell Vocabulary

Cells Alive

[|Virtual Cell]

Animal Cell

Cells and Organelles

Drag and Drop Study Cells


 * __8th Grade OAT Science Vocabulary:__**




 * __Earth And Space Sciences:__**

SEASONS- Created by the tilt of the earth when the northern and southern hemispheres are either tilted away, towards or equally angled from the sun’s most direct rays.

ROTATION- A planetary body such as the earth spinning on its axis like a globe as you spin it.

REVOLUTION- This is when a planet, like earth, makes one complete trip around the sun (360 degrees).

LIGHT YEAR- The distance light travels in one year. It equals 5.879x 10^12 miles or 5,879,000,000,000 miles!

TIDES- The alternate rising and falling of the surface of the ocean and water bodies (such as gulfs and bays) connected with the ocean that occurs usually twice a day, and is caused by the gravitational attraction of the sun and moon occurring unequally on  different parts of the Earth.

GRAVITATION- A force manifested by acceleration toward each other of two free material particles or bodies, or of radiant-energy quanta.

ORBIT- A path described by one body in its revolution about another ( as by the Earth about the sun or by an electron about an atomic nucleus).

COMET- A celestial body that consists of a fuzzy head usually surrounding a bright nucleus, that has a usually highly eccentric orbit, and that often, when in the part of its orbit near the sun, develops a long tail which points away from the sun.

ASTEROID- A small rocky body orbiting the sun.

METEOR- Any of the small particles of matter in the solar system that are directly observable only by their incandescence from fictional heating on entry into the atmosphere.

METEOROID- One of a large number of celestial bodies of various size that appear as meteors when they enter Earthí’s atmosphere.

__**Physical Sciences :**__

Reflection: Notes from class

Refraction: Notes from class.

SPEED- The distance traveled divided by the time interval during which the motion occurred.

WAVE- A periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium.

SOUND WAVES- Mechanical radiant energy that is transmitted by longitudinal pressure waves in a material medium ( such as air) and is the objective cause of hearing.

MOTION- An act, process or instance of changing position through time.

Diffraction - Bending of sound and light. Ex. Sound able to be heard around a corner rather then continuing in a straight line.


 * __Earth Systems:__**

FAULTING- To fracture, so as to produce a geologic fault.

FOLDING- Causing rock strata to undergo bending or curvature.

CONVERGENT- To come together or tend to come together at a point.

DIVERGENT- To separate or spread apart.

TECTONIC PLATES- The earth’s top layer (crust) that shifts and moves on top of the liquid mantle.

EROSION- Weathering of earthí’s surface by forces of nature such as wind and water. This is when soil or rock material (sediments) are taken away from an area. Can also be caused by human activity.


 * __Life Science:__**

FOSSIL- Remnant, impression or trace of an organism of past geologic ages that has been preserved in the Earthí’s crust.

EXTINCT- A species of organisms that no longer exists.

ASEXUAL REPRODUCTION- Involving or reproducing by reproductive processes( as cell division, spore formation, fission or budding) that do not involve the union of germ cells or egg and sperm.