Unit 3: Watershed Lesson

​Unit 3: What is your watershed address?

What is a watershed?​

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Watershed - An area of land where surface water drains to one point.

Multiple Choice

Do you live in a watershed?

• Yes

• No

​Texas Watershed Viewer

​On the next slide you will see the Texas Watershed Viewer website.

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​Directions: Input your home address and see what watershed you have at your home.

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On the last slide you typed your address in the Texas Watershed Viewer. Which sub-watershed do you live in?

Multiple Choice

Do you just live in one watershed?

• Yes

• No

Open Ended

What is the largest watershed in the United States?

​Parts of a Watershed

​Headwaters - area where the water collects at the top of a watershed aka the source

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​Stream - Water flowing down from headwaters forming a channel.

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• ​Perrenial Stream - Stream that flows all year

• ​Intermittent Stream - Streams that only flows for part of year

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​Parts of a Watershed

​Stream Mouth - Place where a stream empties into a larger body of water

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​Tributaries - creeks and small rivers that feed into larger rivers

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​Drainage divides - where two watersheds meet, therefore both sides drain to different watersheds.

Multiple Choice

What is a watershed?

• Imaginary lines drawn horizontally to show the angular distance from the equator

• An area of land where surface water drains down to a single point

• A body of permeable rock that can contain or transmit groundwater

• The study of physical features covering an area

Multiple Choice

Select all of the following that a drainage basin can drain down to...

• Lake

• Ocean

• River

• Lakes, Oceans, and rivers

Multiple Choice

Watersheds are made of...

• Smaller Watersheds

• Porous rock that permeates water

Multiple Choice

When identifying watersheds, you use HUC's. What does HUC stand for?

• Hyper ultimate coeds

• Hydrodynamic universal coalition

• Humid unfiltered cones

• Hydrologic Unit Codes

Multiple Choice

Why is it important to have accurate and detailed precipitation data from multiple areas of a watershed?

• Because water is water. And water doesn't obey the laws of physics

• Because all of the averages can add up quickly together! This increases the overall water collected in a watershed

Multiple Choice

What factors DO NOT go into soil absorption. Select all that apply.

• type of soil

• the pH of the soil - how acidic or alkaline the soil is currently

• how absorbent it is

• how much water is already in the soil

Multiple Select

What two factors go into rate of evaporation? (Select two!)

• temperature

• amount of rainfall

• amount of soil

• humidity

Multiple Choice

Are watersheds an important part of environmental science?

• Yes

• No

Open Ended

What are headwaters?

Open Ended

What are drainage divides?

Open Ended

What is the difference between perennial and intermittent streams?

Open Ended

Where does all water in watersheds in Texas eventually drain into?

​Chapter 3:What is your watershed address?

​Go to the online textbook found on the slide after next and read chapter 3

​"What is your watershed address?"

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​Scroll down to the heading that says "What you do to the land, you do to the water"

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​***Read the chapter from that heading until the end. While you are reading focus on the questions on the next slide.***

​Chapter 3: What is your watershed address?

​Questions:

​1) What is sediment and where does it come from?

​2) What is erosion and what causes it?

​3) How do human activities affect the quality and quantity of water in a watershed?

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What is sediment and where does it come from?

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What is erosion and what causes it?

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How do human activities affect the quality and quantity of water in a watershed?

​What's your watershed address?

​So what exactly is your watershed address? On the next slide you will be at the EPA.gov website that you will use to find out your watershed address and more info about the water in your area. Type in your address into the search bar and locate your watershed.

How’s My Waterway? | US EPA

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What is your watershed address?

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What is the water conditions of your water in your area?

Topographical Maps

Unit 3: Watershed Lesson

https://texasaquaticscience.org/watershed-aquatic-science-texas/