Rock ID Lab

Rock ID LabMs. Steele

Brain POPWhat are the three types of rocks?

Let’s review!http://www.brainpop.com/s

cience/earthsystem/typesofrocks/

Allows people to determine the identify of items They consist of a series of choices that lead us to

the correct name Dichotomous means “divided into 2 parts” so you

will always have two steps Always start with number one EVERY TIMEGo through all of the questions until you reach the

correct description and answer

ResultsWhat did you struggle with?Which rocks were difficult to identify?What is an intrusive rock?What is an extrusive rock?What is foliated?What is non-foliated?

Biotite GraniteLarge black crystal formationsLight in color

Nephelite SyeniteSmall flecks Shimmery Light in color

Hornblende Gabbro GrainyNo dominant crystalsDark in color

BasaltGray in colorDull gray with a slight curve to one edge

ObsidianBlack volcanic glass

ScoriaDeep red to brown and porous

Mica SchistMetamorphic rockTan gray and black

RERUNRecall-Summarize what you did in labExplain-Explain the purpose of the labResults-Describe the results of the lab and what

they meanUncertainties-Describe what you are still unsure

aboutNew-Write at least 2 new things you have learned

from this lab