Enter Category Name
Relief is the shape of landforms on the Earth’s____________?
surface.
New landforms are created by activity within the Earth’s_____?
interior.
The landscape of an area is characterised by the relief, vegetation and the effects of __________ there.
human activity
Hard and resistant rocks, such as granite and quartzite, form sharp ridges3
.
Soft rocks, such as clay or chalk, erode more easily forming smooth shapes. This makes it easier for vegetation to grow. This variation is called_______?
differential erosion.
When the Sun’s energy reaches the Earth, it warms the atmosphere. This heat generates __________?
wind.
Gravity causes the water in rivers, glaciers and
underground to move to the sea. Gravity is also responsible for the __________?
.
tides
When rocks deep within the Earth come to the surface, they are exposed to environmental conditions that cause them to _________?
disintegrate.
Physical weathering occurs when rocks break. It can happen when _________enters cracks in the rock.
water
Chemical weathering occurs when minerals dissolve3
or chemically change into other minerals. This process is responsible for the formation of __________?
caves.
Biological weathering occurs when plants and animals alter rocks _______and _________
physically
chemically.
Erosion is the gradual destruction of the Earth’s surface. Weathering tears away ________ of rock and
soil, ___________ them from one place to another.
fragments
transporting
Transport is the journey eroded
materials make. As the materials
travel, they ________ and rub against
_________.
collide
solid objects
Deposition occurs when _________ materials stop moving and are deposited and cemented. This process takes place in _____ in the Earth’s surface known as sedimentary basins. Over time, the eroded material is compressed and transforms into ___________?
eroded
low areas
sedimentary rocks.
Rivers give a ________ to the sediments they carry. Rivers also _____sediments according to their size. Larg sediments are deposited first. The ________ of sediment, such as silt and clay, are deposited last.
round shape
deposit
smallest pieces
Waterfalls and rapids are formed in the _____ of the river. They are common when the_______ suddenly from hard rock to soft rock.
In the lower and middle courses, we can find ____, which are curves and turns in the river’s channel. The mouth is where the river enters a lake,
larger river or ocean.
upper course
riverbed changes
meanders