Geograpahy

Question 1

Gypsum

Answer 1

A sedimentary rock, made up of sulfate minerals, formed from exasperated sea water, and the texture is very soft.

Question 2

Shale

Answer 2

A sedimentary rock, formed from clay and is compacted form pressure, this can be used for concrete.

Question 3

Limestone

Answer 3

A sedimentary rock made from the calcite mineral, and can be used for concrete.

Question 4

Sandstone

Answer 4

A sedimentary rock made form small grains of quartz & feldspar, this can form layers (banding) and is often used for building stones.

Question 5

Conglomerate

Answer 5

A sedimentray rock made up of large sediments like sand and pebbles. The sediment is so large that pressure alone cant hold the rock together; it is also cemented together with dissolved minerals.

Question 6

Igneous

Answer 6

When melted rock (magma) cools slowly underground that’s when it becomes an igneous rock. Can also be formed from volcanos erupting causing magma to rise the the Earth’s surface.

Question 7

Granite

Answer 7

Ingenious rocks and is used for long lasting monuments and for trim and decoration on buildings.

Question 8

Pumice

Answer 8

Igneous rocks, one way to classyify this rock is by nothing the air bubbles. Very light rock so they can float. This is a kind of glass and not a mixture of minerals.

Question 9

Obsidian

Answer 9

Igneous rocks, this is a glass no minerals are mixed, the edges of this rock is very sharp.

Question 10

Metamorphic

Answer 10

These are rocks that have “morphed” together. These were once ingenious and sedimentary rocks. They get put under tons of pressure which causes heat to build up. Some grains are flattened.

Question 11

Schist

Answer 11

Metamorphic rocks. These can be formed from basalt (igneous) or shale (sedimentary) or slate (metamorphic)

Question 12

Gneiss

Answer 12

Metamorphic rocks. May have been granite (igneous) but the heat and pressure changed it. There are many patterns to these rocks most commonly stripes and/or lines.