landforms. engage what is a mountain?what is a mountain? what is a hill?what is a hill? cut out...
TRANSCRIPT
LandformsLandforms
ENGAGEENGAGE
• What is a mountain?What is a mountain?
• What is a hill?What is a hill?
• Cut out mountain cardsCut out mountain cards
• Look at the cards.Look at the cards.
• How are they alike?How are they alike?
• How are they different?How are they different?
• Put the cards in orderPut the cards in order
• They are the same mountain!!They are the same mountain!!
• What can change a mountain over What can change a mountain over time?time?
• Wind, water, and iceWind, water, and ice
• Which model looks like a hill?Which model looks like a hill?
• Which looks most like a mountain?Which looks most like a mountain?
• How are mountains and hills alike How are mountains and hills alike and different?and different?
EXPLAINEXPLAIN
• BrainPOPBrainPOP Jr. | Science | Learn about Landforms Jr. | Science | Learn about Landforms
What are some characteristics What are some characteristics of mountains?of mountains?
• Mountains are the Mountains are the tallest of these tallest of these landformslandforms
• Ex. Mt. EverestEx. Mt. Everest
MountainMountain
• They are usually They are usually rocky, with sharp rocky, with sharp points and points and angles. angles.
MountainMountain
• Very tall Very tall mountains have mountains have snowcaps, snowcaps, sometimes year sometimes year roundround
MountainsMountains
• Erosion and Erosion and weathering can weathering can wear down the wear down the sharp points and sharp points and leave rounded leave rounded mountainsmountains
Mountain BrainPopMountain BrainPop
• BrainPOPBrainPOP | Mountains | Mountains
• If time, Mount EverestIf time, Mount Everest
What are some characteristics What are some characteristics of hills?of hills?
• Hills are higher Hills are higher than the than the surrounding land surrounding land but not as tall as but not as tall as mountainsmountains
HillsHills
• They are usually They are usually roundedrounded
What are some characteristics What are some characteristics of valleys?of valleys?
• Valleys are low Valleys are low areas between areas between taller mountains taller mountains or hills.or hills.
ValleysValleys
• A river or stream A river or stream usually flows usually flows through the through the valley, or once valley, or once did.did.
What are some characteristics What are some characteristics of plains?of plains?
• Plains are wide, Plains are wide, mostly flat areas mostly flat areas with no with no mountains or mountains or true hills to true hills to break up the break up the space.space.
PlainsPlains
• They are usually They are usually few or no trees few or no trees or only a few or only a few very small ones.very small ones.
How do mountains form?How do mountains form?
• Mountain form when Mountain form when some natural force some natural force causes great blocks of causes great blocks of Earth’s surface to push Earth’s surface to push upward. upward.
How do mountains form?How do mountains form?
• Sometimes, the Sometimes, the surface is raised surface is raised to form great to form great domes. domes.
How do mountains form?How do mountains form?
• Other times, the Other times, the surface pushes surface pushes together to make together to make great fold. great fold.
How do mountains form?How do mountains form?
• Sometimes the Sometimes the blocks break and blocks break and tilt. tilt.
How do mountains form?How do mountains form?
• Sometimes, Sometimes, material from material from undergrounds undergrounds breaks through breaks through the surface and the surface and builds up to builds up to create create mountains. mountains.
How do mountains form?How do mountains form?
• Other times, material is Other times, material is taken away or rearranged, taken away or rearranged, leaving high areas as leaving high areas as mountains.mountains.
How do hills form?How do hills form?
• Some hills are Some hills are the eroded the eroded remain of remain of mountains, mountains, what’s left after what’s left after wind, water, or wind, water, or ice wears down a ice wears down a mountain.mountain.
How do hills form?How do hills form?
• Some hills are Some hills are formed when soft formed when soft surface materials surface materials are eroded away, are eroded away, leaving harder leaving harder materials, which materials, which form structures form structures that are higher that are higher than the than the surrounding land.surrounding land.
How do hills form?How do hills form?
• Some hills are Some hills are formed when formed when loose material loose material builds up, like builds up, like giant sand giant sand dunes.dunes.
How do valleys form?How do valleys form?
• Valleys form Valleys form when water or when water or ice flows down a ice flows down a mountain or mountain or between between mountains and mountains and takes away rocks takes away rocks and other and other surface material.surface material.
How do valleys form?How do valleys form?
• Generally, Generally, valleys formed valleys formed by rivers are by rivers are narrow and V-narrow and V-shaped with shaped with steep sides.steep sides.
How do valleys form?How do valleys form?
• Valleys formed by Valleys formed by glaciers and ice glaciers and ice sheets are wider sheets are wider and more U-shaped.and more U-shaped.
How do plains form?How do plains form?
• Plains are often the part of an ocean Plains are often the part of an ocean floor left behind when ocean levels floor left behind when ocean levels dropped.dropped.
How do plains form?How do plains form?
• Other plains are the areas along side Other plains are the areas along side a river that are periodically covered a river that are periodically covered with silt and sediments when the with silt and sediments when the river floods over its banks.river floods over its banks.
What are some famous What are some famous landforms?landforms?
• The David Mountains are the highest The David Mountains are the highest points in Texaspoints in Texas
What are some famous What are some famous landforms?landforms?
• The Rocky Mountains in the western The Rocky Mountains in the western US are taller and younger than the US are taller and younger than the more eroded and older Appalachian more eroded and older Appalachian Mountains of the eastern US.Mountains of the eastern US.
What are some famous What are some famous landforms?landforms?
• The Alps in Europe and the Himalayas in The Alps in Europe and the Himalayas in Asia have the tallest land mountains.Asia have the tallest land mountains.
What are some famous What are some famous landforms?landforms?
• However, the tallest mountain on However, the tallest mountain on Earth is Mauna Loa, in Hawaii, whose Earth is Mauna Loa, in Hawaii, whose base is on the ocean bottom.base is on the ocean bottom.
What are some famous What are some famous landforms?landforms?
• The Hill Country in central Texas The Hill Country in central Texas formed with the surface materials formed with the surface materials were eroded away to eventually form were eroded away to eventually form the beaches along the Gulf Coast.the beaches along the Gulf Coast.
What are some famous What are some famous landforms?landforms?
• The Loess (“luss”) Hills of Iowa like The Loess (“luss”) Hills of Iowa like the Shaanxi Hills in China formed the Shaanxi Hills in China formed when winds blew dried flood plain when winds blew dried flood plain silts into great piles.silts into great piles.
What are some famous What are some famous landforms?landforms?
• The Rio Grande The Rio Grande Valley of Texas is Valley of Texas is actually a flood actually a flood plain that was plain that was given the label given the label “valley” to “valley” to attract settlers to attract settlers to the area.the area.
What are some famous What are some famous landforms?landforms?
• Much of the city Much of the city of Los Angeles, of Los Angeles, California, lies California, lies within the San within the San Fernando Valley, Fernando Valley, which is which is encircled by encircled by different different mountain chains.mountain chains.
What are some famous What are some famous landforms?landforms?
• The Shenandoah The Shenandoah Valley in western Valley in western Virginia lies Virginia lies within parts of within parts of the Appalachian the Appalachian MountainsMountains
What are some famous What are some famous landforms?landforms?
• The African Rift The African Rift Valley lies on a Valley lies on a big block of big block of land that is land that is actually actually separating from separating from the African the African continent.continent.
What are some famous What are some famous landforms?landforms?
• The Great Plains in the US spans The Great Plains in the US spans between the Appalachian Mountains between the Appalachian Mountains and the Rocky Mountains and and the Rocky Mountains and extends from Texas into Canada.extends from Texas into Canada.
• It was formed millions of years ago It was formed millions of years ago when a great, shallow inland sea when a great, shallow inland sea receded, leaning the seabed behind receded, leaning the seabed behind to form the flat plains.to form the flat plains.
Great PlainsGreat Plains
What are some famous What are some famous landforms?landforms?
• The US also have The US also have large coastal plains large coastal plains that extend along that extend along the coasts of the Gulf the coasts of the Gulf of Mexico, from of Mexico, from Texas to Florida, and Texas to Florida, and along the Atlantic along the Atlantic seaboard, from seaboard, from Florida to New Florida to New England.England.