A CAPS-based slide show on the Earth and Beyond Module for grade 9's.
The focus is on recapping the different spheres of the earth, looking at the Lithosphere, and discussing the rock cycle, ores and minerals.
Text comes from the DocScientia Workbooks for grade 9's.
3. Wind and water
weather rocks to
form soil.
Most living animals
and plants live and
grow on the surface
of the earth.
Water flows
over the ground.
Soil erosion
causes more soil
particles in the
water run-off.
Birds fly through the air. Most
living plants and animals
depend on air from the
atmosphere to live.
Humidity is moisture
In the air.
Precipitates: water
move through the
atmosphere as
part of the water
cycle.
Living plants and
animals need water.
Some plants and animals live
in the water.
5. What is the atmosphere
What is the Lithosphere?
means ‘rocks’
6. The Lithosphere
Consists of the solid upper mantle and the crust.
About 5 – 80 km deep.
Thin layer on top is the soil,
on average only a few meters deep.
Mixture of weathered rocks and minerals.
Organic substances derived from decayed
plant material and animal waste.
7. An important part of the soil is
living matter.
Plants that grow in the soil require nutrients
…
8. The crust is divided into plates that
contain the continents and oceans.
24. Igneous Rock
• Forms from molten
rock.
• Properties:
– Crystalline
– Difficult to break
25. Sedimentary Rock
• Forms from
sediment particles
that are deposited
by water, wind or
ice.
• Formed under great
pressure – no heat is
involved.
• Properties:
– Found in layers
– Often contains fossils
26. Metamorphic Rock
• Rock that started as
igneous or
sedimentary.
• Forms due to
immense heat
and/or pressure of
the earth’s crust.
• Properties:
– Crystalline
– Compressed
structure
27.
28. A mineral
Definition
is a natural solid
with a definite chemical
composition.
Itoccursascrystals
and has a
specific
structure.