TEXTURE OF ROCK..THE SIZE, SHAPE AND POSITIONS OF THE PIECES INSIDE A ROCK..

3 TYPES= FINE GRAINED, COARSE GRAINED AND MEDIUM GRAINED

ROCKS ARE MADE OF MINERALS, BUT MINERALS ARE NOT MADE OF ROCKS.

FINE GRAINED TEXTURE WE DON’T EASILY SEE WHAT IS

INSIDE THE ROCK.. COOLS FAST, CRYSTALS DON’T LAST

EXAMPLE=TOMATO SOUP

MEDIUM GRAINED TEXTURE WE SEE SOME OF THE PIECES INSIDE

THE ROCK BUT NOT ALL OF THEM

MEDIUM=CRYSTALS SOME

EXAMPLE=OREO COOKIE

COARSE GRAINED TEXTURE WE CAN EASILY SEE THE PIECES

INSIDE THE ROCK COOLS SLOW=CRYSTALS SURE CAN

GROW EXAMPLE=A SALAD OR “THE WORKS”

PIZZA

A ROCK’S COMPOSITION THE PERCENTAGE OF THE MINERALS

THAT MAKE UP A ROCK.. EXAMPLE= GRANITE IS MADE UP OF.. 10% MICA 55% FELDSPAR 35% QUARTZ

COME IN SILENTLY AND… READ OVER TODAY’S SONG VERSES AND CHORUS.. UNDERLINE ANY MINERAL OR SCIENCE TERMS YOU SEE IN

EACH VERSE UNDERLINE ANY MINERAL OR SCIENCE TERMS YOU SEE IN

THE CHORUS… BE READY TO CHECK WITH MR.L

NEW COPY ORANGE START UP BOX #2 1. A NON-SILICATE MINERAL DOES NOT HAVE… 2. THE REFLECTION OF LIGHT OFF OF A MINERAL’S SURFACE

IS… 3. THE COLOR OF A MINERAL’S POWDER IS… 4. _____LUSTER IS OFTEN SHINY. 5. THE RESISTANCE TO BEING SCRATCHED IS_________

ORANGE START-UP BOX#3 1. THE PERCENTAGE OF MINERALS

INSIDE A ROCK IS…. 2. _____ARE MADE OF MINERALS, BUT

MINERALS ARE NOT MADE OF_____. 3. THE SIZE AND SHAPE OF THE PIECES INSIDE

THE ROCK ARE CALLED____. THE THREE TYPES OF TEXTURE

ARE.4.____GRAINED, MEDIUM-GRAINED AND 5.________GRAINED

ORANGE START UP BOX #4 1.GRANITE IS MADE OF 10% MICA, 55% FELDSPAR AND 35%

QUARTZ.=…. 2. A TEXTURE WHERE WE EASILY SEE ALL THAT IS INSIDE IS… 3. A TEXTURE WHERE WE SEE SOME, BUT NOT ALL INSIDE IS.. 4. A TEXTURE WHERE WE DON’T SEE EASILY WHAT IS INSIDE IS… 5. A PEPPERONI PIZZA=_____GRAINED

NEW ORANGE START UP BOX #1 1.SILICON + OXYGEN=____MINERAL 2. NO SILICON AND NO

OXYGEN=__MINERAL 3. EARTH IN CENTER/PTOLEMY=

4. 2 PLATES SLIDE BY OR SLIP PAST AND EARTHQUAKES FORM=_____PLATE BOUNDARY

5. WHEN A MINERAL BUBBLES/FIZZES WHEN AN ACID HITS IT IT SHOWS A…

A MINERAL IS… NATURALLY FORMED-NOT MADE BY

YOU OR ME

ROCKS ARE MADE OF MINERALS, MINERALS ARE NOT MADE OF ROCKS.

A MINERAL IS… INORGANIC OR NON-LIVING

A MINERAL IS… SOLID, NOT LIQUID OR GAS

A MINERAL HAS… A REPEATING CRYSTALLINE

STRUCTURE…THIS MEANS THE ARRANGEMENT OF ATOMS ON THE INSIDE GIVES THE MINERAL ITS SHAPE

ON THE OUTSIDE CHECK OUT MR. L’S VISUAL

EXAMPLES OF THIS NOW!!!

Identifying Minerals Each mineral has its own specific properties used to

identify it.

Color The same mineral can

come in a variety of colors Ex. quartz

Impurities & other factors can change mineral appearance

Color is not the best way to identify minerals

Luster Describes how a

surface reflects light Ex. shiny/dull

Metallic- minerals containing metals are often shiny

Nonmetallic Vitreous- glassy,

brilliant Silky-fibrous Resinous-plastic Waxy- greasy, oily Pearly- creamy Earthy- rough, dull

Streak Color of mineral in

powder form Observed by rubbing a

mineral against a piece of unglazed porcelain called a streak plate

Streak doesn’t vary like color & is often different than a mineral’s color

More reliable than color

Cleavage and Fracture Way a mineral breaks

apart determined by arrangement of atoms

Cleavage- breaks along flat surfaces

Fracture- mineral breaks in an irregular way

Hardness Minerals resistance to being scratched Ranks minerals from softest to hardest Talc- softest known mineral Diamond- hardest known mineral

Hardness

Density Mass in a given space/ mass per unit volume D= M/V Density remains same regardless of sample size Mass determined using balance Volume determined using water displacement

method Comparisons can be made by hefting Specific Gravity- ratio of an object’s density to the

density of water

Special Properties Fluorescence- minerals glow under ultraviolet

light, ex. fluorite & calcite Magnetism- ex. Magnetite Radioactive- ex. contain radium or uranium Effervescence- mineral fizzes (releases carbon

dioxide) when in contact with hydrochloric acid=chemical reaction/double image.. Calcite

Halite=salty taste

Pictures of special properties…

ROCK VOCAB/FOOD COMPARISON LAB WORK COMPARE THE ROCK TERM WITH THE

FOOOD ITEMS ON EACH TRAY. PLEASE DO NOT MOVE THE FOOD ITEMS OFF THE TRAY.

EXPLAIN AND ADD A DRAWING OF HOW THE SPECIFIC FOOD ITEM ON THE TRAY MATCHES WITH THE TERM AND DEFINTION IT IS NEXT TO.

GROUP DISCUSSION IS A PLUS!!!!

FOOD COMPARISON/ROCK VOCAB 1. ROCK 8.EROSION 2. IGNEOUS ROCK 9.WEATHERING 3.EXTRUSIVE IGNEOUS10.DEPOSITION 4. INTRUSIVE IGNEOUS11.SEDIMENT 5. SEDIMENTARY ROCK12.METAMPORPHIC 6. CEMENTATION 13. FOLIATED META 7. COMPACTION 14. NON-FOLIATED META 15. COMPOSITION 16. TEXTURE 17.FINE GRAINED TEXTURE 18.COARSE GRAINED TEXTURE 19. THE ROCK CYCLE