|What is Pamgeaea?
|Pangeaea is the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents.
|What is Compression?
|Compression is stress that squeezes rock until it folds or breaks.
|What is Tension?
|Tension is stress that stretches rock so that it becomes thinner in the middle.
|What is Shearing?
|Shearing is stress that pushes a mass of rock in opposite directions.
|What is an Earthquake?
|An Earthquake is the shaking of the Earth's crust, moving as a result of the plates underneath being in motion.
|What is the Richter scale?
|The Richter scale is a scale that rates seismic waves of an earthquake. It is a mechanical seismograph.
|Is a mechanical seismograph still used today for the Richter scale ?
|The mechanical seismograph was used in the late 1980s. The scale used now is the moment magnitude scale. It is an electronic seismograph.
|What is a Fault-block Mountain?
|It is a mountain that forms where two normal faults "lift up" another block of rock.
|What are Shield Volcanoes?
|Shield Volcanos are a wide, gently sloping mountain made of layers of thin lava formed by quiet eruptions.
|What is a Cinder Cone Volcano?
|A Cinder Cone Volcano is a steep, cone shaped hill or mountain made of ash, cinders and bombs (thick lava from explosive eruptions) piled up around a volcano's opening.
|What is a Composite Volcano?
|A Composite Volcano is a tall, cone shaped mountain in which layers of lava alternate with layers of ash and other volcanic material.
|What is Magma?
|Magma is the molten mixture of rock-forming substance, gases and water from the mantle.
|What are Crystals?
|Crystals are the shape a mineral takes because its atoms are arranged in a definite pattern.
|What is the Moh's Scale?
|The Moh's Scale is a scale for determining the hardness of a mineral, named after Friedrich Moh.
|What are Solicates?
|Silicates are any member of the largest group of minerals.
|What is Cleavage?
|Cleavage is the property of some minerals that causes them to easily break along a smooth, flat surface.
|What is Fracture?
|Fracture is the property of some minerals that cause them to break unevenly or along a curved surface.
|What is Luster?
|Luster is the way minerals reflect light. Example: Glassy, Earthy, Waxy, Metallic.
|What is Streak?
|Streak is the colored powder left behind when a mineral is rubbed against an unglazed tile.
|What is Hardness?
|Hardness is the property of minerals in which they are tested to see how easily they can be scratched.
|What is a Diamond?
|A diamond is the hardest known material. It can scratch all other substances/materials and is rated a 10 on the Moh's Hardness scale.
|What is Talc?
|Talc is the softest known mineral that flakes easily when scratched by a fingernail. It is used in powders.
|What is Quartz?
|Quartz is a mineral in the silicate family that is used in watches, computers, glass and as gemstones.
|What is Ore?
|Ore is a rock that has a useful metal in it. It can be crushed and melted to remove the useful metal.
|What is Igneous Rock?
|Igneous Rock is a rock that is formed from magma or lava that has cooled and hardened.
| Part of Igneous rock – What is Intrusive Rock?
|Intrusive Rock is a type of igneous rock that forms when magma hardens beneath Earth's surface.
| Part of Igneous rock – What is Extrusive Rock?
|Extrusive Rock is a type of igneous rock that forms from lava on Earth's surface.
|What is Sedimentary Rock?
|Sedimentary Rock is a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed together. It has a 4 step process.
|What are the 4 steps that form Sedimentary rock?
|(1) Erosion. (2) Deposition. (3) Compaction. (4) Cementation.
|What is erosion?
|Erosion is the process in which wind or water carries away fragments of rock.
|What is Deposition?
|Deposition is the process in which fragments of rock that have been carried by erosion(wind or water) settles in one place and piles up.
|What is Compaction?
|Compaction is the process inw hich sediments are squeezed together by pressure.
|What is Cementation?
|Cementation is the process in which dissolved minerals crystallize and glue particles of sediment together.
|What is Metamorphic rock?
|Metamorphic rock is a type of rock that forms when existing rock is changed by heat pressure and chemical reactions into another rock.
|What is Gneiss?
|Gneiss is a metamorphic rock that formed from granite.
|What is the rock cycle?
|The rock cycle is the process in which rocks change into other types of rock or magma.
|What is weather?
|Weather is to break down due to rain, snow, wind or sand storms due to weather conditions.
|What is a Rotation?
|Rotation is the spinning motion of a planet about its axis.
|What is a Revolution?
|A Revolution is the movement of an object around another object.
|What is a Solar Eclipse?
|A Solar Eclipse is the blocking of the sunlight to Earth that occurs when the moon is between the sun and Earth.
|What is a Lunar Eclipse?
|A Lunar Eclipse is the block of sunlight to the moon that occurs when the Earth is directly between the sun and moon.
|What is a Gas Giant?
|A Gas Giant is the name given to the first four outer planets: Jupiter, Saturn, Uranus and Neptune.
|What is a Comet?
|A Comet is a ball of ice and dust whose orbit as long, narrow ellipse.
|What is an Asteroid?
|An Asteroid are objects revolving around the sun that are too small and too numerous to be considered planets.
|What is an Meteoroid?
|A Meteoroid is a chunk of rock or dust in space.
|What is a Meteor?
|A Meteor is a streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
|What is a Meteorite?
|A Meteorite is a meteoroid that had hit Earth's surface.
|Where do most earthquakes occur?
|Earthquakes occur at fault lines.