does rock information

Sandstone: Sedimentary Rock

Sandstone is a sedimentary rock composed of sand-size grains of mineral, rock, or organic material. It also contains a cementing material that binds the sand grains together and may contain a matrix of silt- or clay-size particles that occupy the spaces between the sand grains. Sandstone is one of the most common types of sedimentary rock, and ...

What Is a Rocket? | NASA

 · The Falcon 9 rocket carries supplies to the space station. This article is part of the NASA Knows! (Grades K-4) series. The word "rocket" can mean different things. Most people think of a tall, thin, round vehicle. They think of a rocket that launches into space. "Rocket" can mean a type of engine. The word also can mean a vehicle that uses ...

Rockrose Information

 · Rockrose Information There are about 20 species of rockrose that grow in the Mediterranean, but only a few are in cultivation in North America. Here are some great choices: Purple Rockrose (Cistus x purpureus) grows 4 feet (1 m.) tall with a spread of up to 5

Hyrax | African Wildlife Foundation

The hyrax is also called rock rabbit or dassie, is a small furry mammal. It looks like a robust, oversized guinea pig, or a rabbit with rounded ears and no tail. Hyraxes have stumpy toes with hoof-like nails; and four toes on each front foot and three on each back foot. The longer, claw-like nails on the inside toes and the back feet are used ...

Why do Rocks Melt on Earth, Anyway? | WIRED

 · This sketch illustrates why rocks melt on Earth. The geotherm (solid line) would suggest that rock shouldn''t melt as it never cross the dry mantle solidus (the point where mantle rock would melt ...

Progressive Rock

Heavy Prog defines progressive rock music that draws as much influence from hard rock as it does from classic progressive rock. In simple terms, it is a marriage of the guitar-based heavy blues of the late 1960s and 1970s - artists such as Cream, Led Zeppelin, and Black Sabbath - and the progressive/symphonic movement represented by King Crimson, Yes and Genesis.


Rock doves typically have a dark bluish-gray head, neck, and chest with glossy yellowish, greenish, and reddish-purple iridesence along their neck and wing feathers. Females tend to show less iridesence than the males and males tend to be slightly larger than females. The bill is dark grayish-pink. Two dark bands across the wings are seen in ...

igneous rock | Characteristics, Examples, Formation, & …

 · It may settle within the crust or erupt at the surface from a volcano as a lava flow. Rocks formed from the cooling and solidification of magma deep within the crust are distinct from those erupted at the surface mainly owing to the differences in physical and …


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Sedimentary Rock Facts for Kids

Enjoy our sedimentary rock facts for kids. Find interesting information and a range of examples that help explain what sedimentary rocks are and what makes them different from other kinds of rocks. Sedimentary rocks are formed by sediment that is deposited over time, usually as layers at the bottom of lakes and oceans .

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Liberate information hidden behind the auto parts store counter (by listing all available items and product specifications on RockAuto , not just what one store stocks or one counter-person knows) Make auto parts affordable (by remaining a strictly online company, we have no store locations, no counter-people and don''t have a lot of money tied up in slow-moving inventory.

Formation of rocks

Rock can also form in the absence of a substantial pressure gradient as material that condensed from a protoplanetary disk, without ever undergoing any transformations in the interior of a large object such as a planet or moon. Astrophysicists classify this as a .


Background Information: Rocks normally consist of several minerals, some essential, some accessory. A rock may be thought of as a "mineral environment." Each rock type was formed under certain specific conditions, resulting in the formation of a fairly

igneous rock | Characteristics, Examples, Formation, & …

 · Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of magma, which is a hot (600 to 1,300 C, or 1,100 to 2,400 F) molten or partially molten rock. Igneous rocks constitute one of the three principal classes of rocks, the


 · So, although it wasn''t easy -- I borrowed a Moon Rock from NASA." Between 1969 and 1972 six Apollo missions brought back 382 kilograms (842 pounds) of lunar rocks, core samples, pebbles, sand and dust from the lunar surface. The six space flights returned 2,200 separate samples from six different exploration sites on the Moon.

Rock Cress Ground Cover: Information On Growing And …

 · Care of Rock Cress Plants. Regardless of the type you choose to grow, the care of rock cress plants is relatively minimal. Water new rock cress plants regularly and only when the soil is dry once they are established. Rock cress ground cover does well in fair soil that has good drainage and is slightly acidic. Applying a light pine needle mulch ...

Why Is It Called "Rock n'' Roll"?

Is "Rocket ''88" by Jackie Brenston and his Delta Cats the very first rock and roll record? The question has inspired debate among musicologists for years. Another equally contentious question: Where does the term rock and roll come from?Rock is derived from the Old English roccain, related to the Old Nordic rykkja meaning, "to pull, tear, move." The earliest recorded use of the term ...


Geology is the study of the nonliving things that the Earth is made of.[1][2] Geology is the study of rocks in the Earth''s crust. People who study geology are called geologists.[3] Some geologists study minerals and the useful substances the rocks contain such as ores and fossil fuels. Geologists also study the history of the Earth. Some of ...

What Does the Bible Say About Rocks?

Matthew 7:24-27 ESV / 61 helpful votes Helpful Not Helpful "Everyone then who hears these words of mine and does them will be like a wise man who built his house on the rock. And the rain fell, and the floods came, and the winds blew and beat on that house, but ...

rock | Definition, History, Artists, Songs, & Facts | Britannica

Rock was developed as a term to distinguish certain music-making and listening practices from those associated with pop; what was at issue was less a sound than an attitude. In 1990 British legislators defined pop music as "all kinds of music characterized by a strong rhythmic element and a reliance on electronic amplification for their performance."

Plan Your Visit

 · Plan Your Visit. Miners Castle on Lake Superior. The water truly is this color in the right light! Welcome to Pictured Rocks National Lakeshore, America''s first National Lakeshore! Unlike any other place on Lake Superior, Pictured Rocks offers the opportunity to explore miles of pristine beaches, hike nearly 100 miles of trails, view towering ...

How The Rock Cycle Works | Geology Rock Cycle | DK …

How does the rock cycle work? Rocks turn from one type into another in an endless cycle. Many factors contribute to this process, both on Earth''s surface and in its interior. On the surface, rock is broken down by weathering, such as wind or rain. Glaciers and ...

Rock (geology)

 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are

Dwayne Johnson

Dwayne Douglas Johnson (born May 2, 1972), also known by his ring name The Rock, is an American actor, producer and retired professional wrestler. Regarded as one of the greatest professional wrestlers of all time, he wrestled for the World Wrestling Federation (WWF, now WWE) for eight years prior to pursuing an acting career.

Rock pool

The rock pool habitat Tide pools are a home for hardy organisms such as sea stars, mussels and clams. They must be able to cope with a constantly changing environment — fluctuations in water temperature, salinity, and oxygen content. Huge waves, strong currents, exposure to midday sun and predators are only a few of the hazards that rock pool animals must endure to survive.

Frequently Asked Questions

 · Call the Rock Creek Park Nature Center at 202-895-6070 and speak with a ranger to schedule a program or for more information. 17. How do I get on the mailing list for the calendar of events or newsletter?

What Is Tourmaline | How Is Tourmaline Formed | Gem …

Some species will also grow in metamorphic rock such as marble. Since they are formed in a liquid rich environment, the inclusions can contain small amounts of liquid trapped inside the stone. Hopefully this information has provided some answers to the question "What is Tourmaline" and provided some insight into how it has been formed.

Rockwool, Product Information

Rockwool. Rockwool is a horticultural growing media made from the natural ingredients Basalt rock and Chalk. These are then melted at 1600° C into a lava which is blown into a large spinning chamber, which pulls the lava into fibers like "cotton candy." If you have ever visited a volcano you have probably seen these fibers flying around in the air ...

Rock and roll

Obsidian Rock Facts. Obsidian is an igneous rock that forms when molten rock cools very rapidly. The result is a rock that cooled so fast, crystals did not get a chance to form. Obsidian is a volcanic glass with a smooth and uniform structure.


A rock does not even need to have crystals but may be in the form of a non-crystalline solid state or glass, an amorphous mixture in which the chemicals are not crystallized into minerals, such as in obsidian. Generally rocks are considered to only be natural ...

Ayers Rock: Facts and Information About Uluru

 · Ayers Rock, also known as Uluru, is a large sandstone rock formation located in the Northern Territory, close to the exact centre of Australia. The closest large town is Alice Springs, about 200 miles away. The huge sandstone rock is 1,142 feet high and can be seen from miles around. It measures almost 6 miles in circumference and is known for ...

Rock music

Rock music is traditionally built on a foundation of simple unsyncopated rhythms in a 4 4 meter, with a repetitive snare drum back beat on beats two and four. Melodies often originate from older musical modes such as the Dorian and Mixolydian, as well as major


How does rock type contribute to geological research ? Although understanding and learning to recognize minerals and rock types can be a satisfying experience, geoscientists are typically more interested in the information that can be gleaned from rocks about the conditions under which a particular rock formed.


The town of Rock is located across the Camel estuary from the fishing port of Padstow. For somewhere so sandy Rock might not seem like the most appropriate name. However, it comes from the local quarry where the rocks were used as ballast by sailing ships which had unloaded their cargo across the river. The quarry is now a car park. Rock Beach A village shop stocked with a superb selection of ...

Limestone: Rock Uses, Formation, Composition, Pictures

Limestone is a sedimentary rock composed primarily of calcite, a calcium carbonate mineral with a chemical composition of CaCO 3. It usually forms in clear, calm, warm, shallow marine waters. Limestone is usually a biological sedimentary rock, forming from the accumulation of shell, coral, algal, fecal, and other organic debris.