Rock Cycle
What are the three main rock families?
Igneous,Sedimentary,and Metamorphic.
What causes tides?
The main cause is the moon's gravity acting on Earth's oceans, creating two tidal bulges.
What is erosion?
erosion is when wind, water or ice moves down hill or changes the soil and sediment from one location to another, wearing away the Earth’s surface .
What is weathering ?
Weathering is the process of the weakening and breakdown of rocks, metals, and artificial objects.
What causes deposition?
It occurs when wind or water loses energy (decreases speed) and can no longer carry sediment.
What processes turn rocks into sediment?
Weathering, erosion, and transport by water, wind, or ice.
What are Spring tides?
Spring Tides Occur during full and new moons, when the sun and moon align, creating higher high tides and lower low tides.
How has erosion grown to become an issue in this region?
Farming and mining are the greatest cause of erosion at the moment .
What are two types of weathering ?
There are two main types of weathering: chemical and physical.
What are examples of deposition?
Deltas at river mouths, sand dunes formed by wind, and sandbars created by waves.
Can any rock become another type of rock?
Yes, through the cycle, any rock type can melt, erode, or change via pressure to become a new type.
What are Neap Tides?
Neap Tides Occur when the sun and moon are at right angles to each other (first and third quarter moons), resulting in a lower tidal range.
What Causes Erosion?
Erosion is the geological process of wearing away soil and rock, driven primarily by natural forces like water, wind, gravity, and ice.
What is an example of chemical weathering ?
An example of chemical weathering is acid rain.
What factors affect it ?
The size, density, and shape of sediments determine how fast they settle (e.g., larger particles deposit first).
How does metamorphic rock become igneous rock?
It must melt entirely into magma and then cool.
How often do tides change?
In most coastal areas, there are two high tides and two low tides every day.
What is the major agent of erosion on Earth?
Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes and the ocean carry away bits of soil and sand and slowly wash away the sediment.
What is an example of physical weathering .
An example of physical weathering is wind blowing across the desert plays .
How does it differ from erosion?
Erosion moves rock material, while deposition drops or settles it in new locations.
How do igneous rocks form?
through the cooling and solidification of molten rock material, either magma below the Earth's surface or lava on the surface
Do other planets affect our tides?
While planets do have gravity, it is too weak to create noticeable tides on Earth compared to the Moon and Sun.
Can ice erode the earth?
Ice, usually in the form of glaciers, can erode the earth and create dramatic landforms.
What are the two main types of weathering?
Mechanical,and chemical
What is sorting?
River deposits are usually sorted (separated by size), while glacial deposits are generally unsorted.