Rock Flash Cards

Question 1

Cycle

Answer 1

A cycle is a series of events that happen repeatedly in the same order.

Question 2

Deposit

Answer 2

Deposite in Science is when an accumulation or layer of solid material, either consolidated or unconsolidated, left or laid down by a natural process.

Question 3

Erosion

Answer 3

An Erosion is when the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.

Question 4

Extrusive

Answer 4

Extrusive is relating to or formed by geologic extrusion from the earth in a molten state or as volcanic ash.

Question 5

Fossil

Answer 5

The fossils are the remains or traces of plants and animals that lived long ago. Most fossils are found in earth that once lay underwater.

Question 6

Igneous Rocks

Answer 6

Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies.

Question 7

Intrusive

Answer 7

Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet. When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.

Question 8

Lava

Answer 8

Lava is a molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption , usually at temperature from 700 to 1200 celcius .

Question 9

Magma

Answer 9

Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.

Question 10

Metamorphic

Answer 10

The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated

Question 11

Metamorphic Rock

Answer 11

Metamorphic rock, any of a class of rocks that result from the alteration of preexisting rocks in response to changing environmental conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components.

Question 12

Pressure

Answer 12

The pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Question 13

Rock

Answer 13

A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed.

Question 14

Rock Cycle

Answer 14

The rock cycle is used to explain how the three basic rock types are related and how Earth processes, over geologic time, change a rock from one type into another.

Question 15

Sediment

Answer 15

Sediment is a solid material that is moved and deposited in a new location. Sediment can consist of rocks and minerals, as well as the remains of plants and animals.

Question 16

Sedimentary Rock

Answer 16

A sedimentary rock is a rock that is formed at or near Earth’s surface by the accumulation and lithification of sediment.

Question 17

Texture ( In Rocks )

Answer 17

The texture of a rock is the size, shape, and arrangement of the grains (for sedimentary rocks) or crystals (for igneous and metamorphic rocks).

Question 18

Weathering

Answer 18

Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. … Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth.