Rocks Review

Which sample is composed of sediments 0.006 cm to 0.2 cm in size and were compacted and cemented together?

• Conglomerate
• Sandstone
• Gneiss
• Granite

If granite were subjected to intense heat and pressure, it would most likely change to...

• Conglomerate 
• Sandstone
• Gneiss 
• Granite

The Basalt was most likely formed by...

• heat and pressure
• melting and solidification
• compaction and cementation
• erosion and deposition

Which sample would most likely contain fossils?

• Gneiss
• Granite
• Sandstone
• Basalt

Which sample is igneous and has a coarse texture?

• Sandstone
• Conglomerate
• Basalt
• Granite

Which characteristic of Rock B could be caused by the minerals Pyroxene and Olivine?

• Green color
• Felsic composition
• Folded layers
• Metallic luster

Rock B most likely is...

• Conglomerate
• Schist
• Obsidian
• Peridotite

The mineral Quartz in Rock A is composed of the two most abundant elements by mass in the Earth's crust.  These two elements are Oxygen and...

• Magnesium
• Silicon
• Iron
• Lead

Which two rocks most likely formed farthest below the surface of the Earth?

• A and B
• B and C
• C and D
• A and D

Which rock is least likely to contain fossils?

• Gabbro
• Shale
• Limestone
• Siltstone