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, PLANTS

NIMALS

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, PLANTS

NIMALS

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