Science

February 19th, 2015February 20th, 2015

Warm Up… Review for MSL!1. Which section of Earth’s interior is composed primarily of

liquid metal? • A crust B mantle C outer core D inner core 2. Due to extreme pressure, the inner core of Earth is • A solid B liquid C gas D plasma 3. When an earthquake occurs, the speed of the seismic

waves changes as they • A. move through different materials.• B. are pulled by the force of gravity. • C. lose energy to surrounding rocks. • D. reflect off of boundaries.

Think about this statement

• How can soil be lost or degraded (means has less vitamins and nutrients) over time?

• Do you think we can see this damage around us?• Do you think we could have a better view of

these changes from space?• Scientists use something called Remote Sensing

Remote Sensing video• https://www.youtube.com/watch?v=

sBI3MIbzIBA

Write in notebook

Remote Sensing• Satellites in space used to look at the

Earth’s surface• Takes pictures of the Earth • Shows how Earth’s surface has changed

due to humans• Information used to protect, preserve,

and predict future changes

WRITE IN NOTEBOOK

Soil Conservation: • the management of soil to prevent its

destruction

WRITE IN NOTEBOOK

2 Main purposes of Soil conservation: • 1. Prevent and reduce erosion (hold

the soil in place) • 2. Maintain and improve soil fertility

(vitamins and nutrients in soils)

WRITE IN NOTEBOOK

Soil conservation techniques:• Contour Plowing• Conservation Tillage• Terracing• Crop Rotation

Videos on Soil Conservation• What is crop rotation• https://www.youtube.com/watch?v=O9YDlcKG4rA

• Farming the contour• https://www.youtube.com/watch?v=ChEgH4Jcl5A

• Conservation tillage• https://www.youtube.com/watch?v=qbbnerV_Pws

• Farming basics terraces• https://www.youtube.com/watch?v=qbbnerV_Pws

In the remaining time….

You will use textbooks to beginresearching soil conservation methods

and techniquesYou will use your knowledge to create

an informational brochure• Directions and a rubric will be

provided now!

Soil Conservation Brochure Research

Turn to page A 135- 136 Description / definition for:• Soil Conservation• Contour Plowing• Conservation Tillage• Terracing• Crop Rotation

REAL WORLD EXAMPLES

• CONTOUR PLOWING: In the hills of Pennsylvania• CONSERVATION TILLAGE: Crops growing in

California• TERRACING: Rice growing in Indonesia• CROP ROTATION: Corn and soybeans growing in

Wisconsin

Brochure Activity• You will be given one piece of paper for your

brochure (DO NOT MESS UP!)• You will be given an example brochure too• Lastly, you will be given a rubric to show how

these will be graded• In the remaining time, you will complete your soil

conservation brochure• DUE TODAY IN CLASS – DO NOT

WASTE TIME!