2nd 9 weeks science review
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2nd 9 Weeks Science Review. Created and modified 1/3/2012 By: C. Horejsi. WIND EROSION. ICE EROSION. WATER EROSION. ICE. Wind. WATER. weathering. EARTH'S. ROTATION. Causes N IGHT & DAY. CONSTRUCTIVE & DESTRUCTIVE. FORCES. erosion moves soil. breaking down of rocks. - PowerPoint PPT PresentationTRANSCRIPT
2nd 9 Weeks Science Review
Created and modified1/3/2012
By: C. Horejsi
The glacier moves down the valley and causes erosion and wearing away of the rock and soil
underneath the ice.
Constructive – build up of sand
Destructive – wearing away
Destructive – wearing away
Destructive – wearing away
Resources in Review
What are resources?Resources are things people use.
Can you name some resources: wind, water, soil, trees, animals, oil, fossil
fuels, solar energy, minerals, rocks, food, electricity, plastic, and many other items.
The most abundant natural resource on Earth
97% is
NaClH20
Can you restate this claim?
Renewable, Nonrenewable, or Inexhaustible
Classify the following:
Fossil Fuels
Non-renewable resources – it takes millions of years to make
Types of Fossil Fuels
Coal Oil Petroleum Natural Gas
EOPLE, PLANTSNIMALS
ITROGEN
RINKING WATER
IR (ATMOSPHERE) OXYGEN – CARBON-DIOXIDE
OIL
Soil Types
Silt-fine, rich ingredients, moved from some other place
Sand-grainy, mixture Potting Soil – Large particles
Clay- tiny particles, retains moisture
Sedimentary Layers
Loam is a mixture of Clay,
Silt, & Sand
Sedimentary Rock LayersWhich layer is the oldest?
Earth’s Resources
S.H.E.L Fossil Fuels S.O.W. &
Minerals
?
[Online Imagehttp://www.roseflowergarden.com/images/soil-a-Small.jpg Downloaded February 4, 2007.
A Sediment Display
Inexhaustible Resources:U N
C E A N TIDES
I N D
eothermal heat
EOPLE, PLANTSNIMALS
ITROGEN
RINKING WATER
IR (ATMOSPHERE) OXYGEN – CARBON-DIOXIDE
OIL
Fossil Fuels
Non-renewable resources – take millions of years to make. Made from the remains of living organisms – such as plants and animals.
Takes millions of years to make – cannot be replaced in our life time.
Types of Fossil Fuels
Coal Oil Petroleum Natural Gas
m ountains
eather
From Water, Wind, & IceV
U
MAGNETS have 2 poles
Electric currents