Unit 2: Factors Impacting Earth Systems


7.6(A) DISTINGUISH between physical and chemical changes in matter.

7.8(A) PREDICT and DESCRIBE how catastrophic events such as floods, hurricanes,  or tornadoes impact ecosystems.

7.8(B) ANALYZE the effects of weathering, erosion, and deposition on the environment in ecoregions of Texas.

7.8(C) MODEL the effects of human activity on groundwater and surface water in a watershed.

Vocabulary Words

How W.E.D. Impact Texas Land



Physical and Chemical Changes


Top 15 Natural Disasters

Destructive Forces of Nature

YouTube Video

YouTube Video

YouTube Video

The Importance of Wildfires

The True Story of Smokey the Bear



Erosion and Soil

YouTube Video

YouTube Video

Texas Ecoregions - Lesson



What is a Watershed?

YouTube Video


Watershed Demo

YouTube Video

What is groundwater?

YouTube Video

The Groundwater Story

YouTube Video

How Do Aquifers Work?

How Do Aquifers Work?

The Ogallala Aquifer

Pollution Near the Trinity River

YouTube Video

After the Storm (video from WebQuest)

YouTube Video

Wastewater Treatment

YouTube Video

Build Your Own Aquifer GAME

Catastrophic Events Website Mini-Project

Group 1

Group 2

Group 3

Group 10

Group 11

Group 12

Group 13

Group 14

Group 15

Group 16

Group 17

Group 18

Group 19

Group 20

Group 21

Group 22

Group 23

Group 24

Group 25

Group 26

Group 27

Group 28

Group 29

Group 30

Group 31

Group 32

Group 34

Group 35

Group 36

Group 37

Group 38

Group 39

Group 40

Group 41