#2 Classification Lab 2012 1/24

• A mineral is a naturally occurring solid chemical substance , having characteristic chemical composition, highly ordered atomic structure, and specific physical properties

• Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms.

• The study of minerals is called mineralogy.

Mineral Properties•

Luster Hardness Streak CleavageParting Fusibility Specific Gravity Habit Tenacity Color Luminescence Radioactivity MagnetismAcid Reaction

Minerals – are naturally occurring inorganic substances

Minerals – can be different colors, hardnesses,streaks,etc..

Lab

• I. TITLE: classification lab • II. PURPOSE : to classify and prepare a “key”

that allows for identification of various objects based upon observable properties.

• III.PROCEDURE : rtb :obtain a tray of items and begin to identify characteristics that allow for the making of a key similar to the ones seen in this presentation. Use your phone to take pictures of the items in your tray.

• IV: DATA for tray number : _____ • # of objects in tray: _____

OBJECT NAME

length (cm)

Color Flexible or inflexible

Shape ( round,square,irregular, etc)

Use the ruler above to measure objects

20 rows deep

• V. GRAPH : none• VI. Q’s: prepare a “key” for identifying the

objects in the tray(s) assigned to you. • VII. Conclusion :• VIII. SOE :

SAMPLE

MISC OBJECTS

LESS THAN 20

CM

LESS THAN 15

CM

LESS THAN 10

CM

LESS THAN 5

CM

BLACK ,PURPLE

RED,BLUE, GREEN WHITE,GREY