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8th grade science
Unit 3 Minerals, rocks and natural resources
| Question | Answer |
|---|---|
| MINERALS CAN BE IDENTIFIED ON THE BASIS OF THEIR .... | CHEMICAL AND PHYSICAL PROPERTIES. |
| HOW CAN DIAMOND AND GRAPHITE BE MADE OF THE SAME ELEMENT (CARBON) AND BE SO DIFFERENT? | THE WAY THE CARBON ATOMS ARE SHAPED AND HOW CLOSE TOGETHER THEY ARE. |
| WHAT ARE THE 2 MOST ABUNDANT ELEMENTS IN THE LITHOSPHERE BY MASS? | OXYGEN AND SILICON BECAUSE THEY ARE COMMONLY FOUND ITN THE CRUST AND MINERALS. |
| WHAT IS THE DIFFERENCE BETWEEN A MINERAL AND A ROCK? | A ROCK IS A COMBINATION OF 2 OR MORE MINERALS WHERE AS MINERALS IS MADE OF AN ELEMENT IN THE PERIODIC TABLE. |
| WHICH IS THE BEST TEST TO DETERMINE A MINERAL'S IDENTITY? | THE HARDNESS TEST ( MOH'S SCALE) EVERY MINERAL HAS ITS OWN HARDNESS THAT NO OTHER MINERAL POSSESS. |
| QUARTZ | THIS MINERAL HAS A NONMETALLIC LUSTER, SCRATCHES GLASS, SHOWS FRACTURE, HAS A GREEN COLOR AND HEXAGONAL CRYSTALS. HARDNESS 7, COLORLESS, Si02 |
| PYRITE | THIS MINERAL HAS AMETALLIC LUSTER, SCRATCHES GLASS, SHOWS FRACTURE, HAS A A BRASSY YELLOW COLOR AND GREEN BLACK STREAK. |
| TALE | THIS MINERAL HAS A NON METALLIC LUSTER, DOES NOT SCRATCH GLASS, SHOWS CLEAVAGE, HAS A WHITE COLOR AND A GREASY FEEL. |
| POTASSIUM TELDSPAR | THIS MINERAL HAS A NONMETALLIC LUSTER, SCRATCHES GLASS, SHOWS CLEAVAGE, HAS A WHITE COLOR AND CLEAVES IN 2 DIRECTIONS AT 90 DEGREES. |
| GALENA | THIS MINERAL HAS A METALLIC LUSTER, DOES NOT SCRATCH GLASS, SHOWS CLEAVAGE, HAS A SILVER COLOR AND A GREY BLACK STREAK. HARDNESS 2.5, Pbs |
| CALICLE | THIS MINERAL HAS A NON METALLIC LUSTER, DOES NOT SCRATCH GLASS, SHOWS CLEAVAGE, IS CLORLESS, AND BUBBLES WITH ACID. |
| DOLOMITE | THIS MIERAL HAS ANON METALLIC LUSTER, DOES NOT SCRATCH GLASS, SHOWS CLEAVAGE, IS COLORLESS AND BUBBLES WITH ACID WHEN POWDERED. |
| OLIVINE | THIS MINERAL HAS A NONMETALLIC LUSTER, SCRATCHES GLASS, SHOWS FRACTURE, HAS A GREEEN COLOR, AND HAS A GRANULAR APPEARANCE. HARDNESS 6.5, (FE,Mg)2Si04 |
| MUSCOVITE-MICA | 2-2.5, COLORLESS TO YELLOW, FLEXIBLE IN THIN SHEETS, PAINT ROFFING. |
| MAGNETITE | 5.5-6.5 BLACK TO SILVER, BLACK STREAK, MAGNETIC, ONE OF IRON STEEL. |
| SULFUR | 2, YELLOW TO AMBER, WHITE-YELLOW STREAK, SULFURIC ACID. |
| WHAT ARE 2 TYPES OF LUSTER? | METALLIC, NON METALLIC |
| RANGE OF HARNESS FOUND ON THE CHART | RANGE ON ESRT IS 1-7.5. MOH'S SCALE IS 1-10 |
| WHAT IS THE MOST COMMON ELEMENT FOUND IN THE COMPOSITION OF MINERALS ON THE CHART? | OXYGEN |
| WHAT TYPE OF BREAKAGE IS MORE COMMON CLEAVAGE OR FRACTURE? | CLEAVAGE |
| FLOURITE | NON METALLIC, HARNDESS 4, BREAKAGE CLEAVAGE, COLORLESS CaF2 |
| WHICH MINERAL TASTE SALTY? | HALITE |
| WHAT IS SELENITE GYPSUM USED FOR? | PLASTER OF PARIS, DRYWALL |
| WHICH MINERAL MIGHT BE FOUND IN YOUR CAR BATTERY? | GALENA |
| WHICH MINERAL IS FOUND IN YOUR PENCIL? | GRAPHITE |
| DOES THE ESRT CHART GIVE INFORMATION FOR EVERY MINERAL FOUND ON EARTH? | NO, THERE ARE THOUSANDS OF MINERALS WITH OTHER ELEMENTS IN THEM. THE ESRT ONLY GIVES US 21. |
| SILICATE MINERALS | A GROUP OF MINERAL MADE OF A STRUCTURE CALLED THE SILICON-OXYGEN TETRAHEDRON (PYRAMID SHAPE) |
| WHEN SILICON AND OXYGEN BOND TOGETHER IN NATURE THEY FORM A PYRAMID SHAPED MOLECULE CALLED.... | SILICON -OXYGEN TETRAHEDRON |
| WHAT DEFINES A MINERAL? | 1 A PURE SUBSTANCE.2 NATURALLY OCCURING, 3. HAS A CHEMICAL FORMULA, 4. IS INORGANIC (NEVER LIVING AND DIDN'T COME FROM A LIVING THING) 5. IT IS IN THE SOLID FORM. |
| HARDNESS | A MEASUREMENT OF MINERAL'S RESISTANCE TO BEING SCRATCHED MOH'S SCALE. IT IS THE BEST TEST TO IDENTIFY A MINERAL BECAUSE EVERY MINERAL HAS IT'S OWN HARDNESS THAT NO OTHER MINERAL POSSESSES. |
| WE COMMONLY COMPARE A MINERAL'S HARDNESS TO THAT OF ... | GLASS. 5.5 |
| CLEAVAGE | WHEN A MINERAL BREAKS ALONG FLAT, SMOOTH SURFACES. CLEAVAGE SURFACES OR PLANES CAN BE BIG OR SMALL. |
| FRACTURE | WHEN A MINERAL BREAKS ALONG ROUGH UNEVEN SURFACES. |
| THEY ARE OPPOSITES | CLEAVAGE AND FRACTURE |
| METALLIC LUSTER | IF A MINERAL HAS THE APPEARANCE OF METAL, DARK,SHINY, SPARKLING AND REFLECTING LIGHT. |
| NON METALLIC | IF A MINERAL DOES NOT LOOK LIKE A METAL |
| OTHER TYPES OF LUSTER ARE... | GLASSY, PEARLY, WAXY, ETC... |
| A SINGLE MINERAL | CAN COME IN A QUANTITY OF COLORS LIKE QUARTZ. |
| SULFUR AND OLIVINE | ARE MINERALS THAT HAVE A UNIQUE COLOR |
| STREAK IS TESTED BY | RUBBING THE MINERAL ACROO AN UNGLAZED PORCELAIN TILE. |
| METALLIC MINERALS USUALLY HAVE | DARK STREAKS |
| ACID TEST | THE ONLY CHEMICAL PROPERTY TEST WE CONDUCT ON A MINERAL |
| SOME MINERALS WILL...... WHEN ACID IS APPLIED TO THE SURFACE OF THE MINERAL. | BUBBLE AND SMOKE |
| CALCITE | MINERAL MOST OFTEN ASSOCIATED WITH THE ACID TEST. IT WILL BUBBLE AND SMOKE WHEN A VERY SMALL AMOUNT OF HCL IS APPLIED TO IT'S SURFACE. SPLITS LIGHT LIKE A PRISM. |
| MAGNETITE | HAS NATURAL MAGNETISM |
| SILICATE MINERALS | THE LARGEST GROUP OF MINERALS |
| ROCKS | ARE A MIXTURE OF MINERALS AND SOMETIMES OTHER THINGS THAT MAY MAKE US SICK. |
| A SCIENTIST PUTS AND UNKNOWN MINERAL | THROUGH SEVERAL IDENTIFICATION TESTS IN ORDER TO FIND OUT WHAT NATURAL MINERAL HE/SHE HAS FOUND. |
| MOH'S SCALE | IS THE TOOL USED TO MEASURE A MINERAL'S HARDNESS. |
| COLOR | NOT THE BEST TO IDENTIFY A MINERA., AS 2 DIFFERENT MINERALS CAN HAVE THE SAME COLOR. AS IN GOLD AND PYRITE. |
| STREAK | THE COLOR OF A MINERAL IN ITS POWDER FORM |
| MINERALS CAN HAVE... | UNUSUAL AND UNIQUE IDENTIFYING PROPERTIES. SOME ARE GEMS, WHICH MEAN THEY ARE VALUABLE BECAUSE THEY ARE RARELY FOUND. |
| SOME MINERALS DISPLAY | NATURAL LUMINESCENCE WHEN DISPLAYED UNDER BLACK LIGHT. |
| THE MOST ABUNDANT ELEMENTS IN THE EARTH'S CRUST ARE.. | SILICON AND OXYGEN. |
Created by:
manie