1st MP Quarterly 6th Science
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What do contour lines show?
they are lines that connect equal elevations
What is a key?
They are symbols on a topographic map.
What does latitude show?
NORTH-SOUTH distance of the equator
What does longitude show?
EAST-WEST distance of the prime meridian
What landform has high elevation and a flat surface?
The difference in elevation between the highest and lowest parts of an area is called ______.
This kind of map shows elevation, relief and landforms.
A mixture of metals is called an _____.
An economically useful mineral is _____.
What is LUSTER?
how a mineral reflects light
The color of the powder of a mineral is called _____.
A ROCK is made up of _______ and other ___.
minerals and materials
How does a topographic map differ from a road map?
How does GPS work?
system of satellites
What determines Earth's topography?
What does a map scale (1:25,000) represent?
1 cm on a map represents 25,000 cm on Earth
Describe how minerals form?
Crystallization or evaporation
How does slow cooling of magma affect the size of mineral crystals?
Large crystals form
What characteristics must a substance have to be considered a mineral? (there are 5)
- naturally occurring
- crystal structure
- definite chemical composition
What is the hardest known mineral?
What is the softest known mineral?
How can you identify a ROCK?
- classified by origin
- coarse grained - grains large and easy to see
- fine grained or glassy
What happens to SEDIMENTARY rocks? (EDCC)
over time coral turns to limestone
IGNEOUS rocks are made out of _______?
magma or lava
What are some characteristics of IGNEOUS rocks?
texture - determined by size, shape and pattern of grains
- porphyritic - large crystals scatter on background of smaller crystals
Metamorphic rocks are formed under _____ and _____.
Heat and Pressure
Two types of metamorphic rocks are _____ and ____.
foliated and non foliated
Learn ROCK CYCLE on PAGE 115
KNOW TOPOGRAPHIC SYMBOLS AND WHAT THEY MEAN PG. 55-57
PRACTICE READING MOHS HARDNESS SCALE PG. 70
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