Definition: This Latin root word means equal or same. 

Examples, additional information:

Here are some examples of words that use this root word:

equilibrium = The state or condition of being in equal balance.

equilateral = an equal sided triangle

equi-distant = the same distance away

equinox = Either of the two annual crossings of the equator by the sun, once in each direction, when the length of day and night are approximately equal everywhere on earth. The equinoxes occur around March 21 and September 23.

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How does this term apply to any of our labs in class?

"Equi" is part of the word equilibrium, which means equal balance. Nature wants to be in equilibrium, or equal balance. In our water bottle rocket lab, we disrupted equilibrium by pumping air into our rocket. This created high air pressure inside. Because nature wants to be in equilbrium, the air wants to flow from high to low air pressure to even things back out again. Thus, the more air we pump inside, the more we disrupt equilibrium and the more potential energy we create. That potential energy is changed to kinetic energy when we release the bottle rockets. 

Cite any sources used for the information above in this box.

"Latin-Greek Cross Reference: equi." Robertson's Words for a Modern Age. 2007. Senior Scribe Publications . 6 Nov 2007 <http://wordinfo.info/words/index.php?v=info&a=view_unit&s=equi&page=2&u=749&spage=1>.

The image came from http://www.goodcowfilms.com/farm/basement/ga-archive/html_data_files/equal_sign.gif.