Hero | Texas Hub Module

Texas Science Teacher Resource Hub

Free scope and sequences, TEKS breakdowns, phenomenon ideas, and engagement activities for the 2024 Texas science standards.

I'm Chris Kesler, a former award-winning Texas middle school science teacher. This is the site I wish I'd had in the classroom. One hub with TEKS breakdowns, scope and sequences, phenomenon starters, engagement ideas, and resources, all aligned to the standards you actually teach.

Get Free Pacing Guide

🚀 Jump to Your Grade

Pick your grade level and go straight to your TEKS standards, aligned resources, and teaching tools.

All standards updated for the 2024 TEKS revision

TEKS Details | Texas Hub Module

7th Grade TEKS Standards

Click any standard to see what it means, how to teach it, where students get stuck, and aligned resources.

TEKS S.7.11A • Earth & Human Activity

Human Activity & Water

The Standard

"Analyze the beneficial and harmful influences of human activity on groundwater and surface water in a watershed."

💡 What This Standard Actually Means

The Key Verb

"Analyze". Students are analyzing both the beneficial and harmful influences of human activity on groundwater and surface water in a watershed. The new wording is broader than the old version, which focused on specific kinds of pollution. Now kids need to weigh both sides (positive and negative) and consider both groundwater (under the surface) and surface water (rivers, lakes, streams) within a single watershed. Instruction can take many forms, such as watershed mapping projects, beneficial-and-harmful sorting activities, local water-source case studies, and groundwater-vs-surface-water comparison labs.

A watershed is the entire land area that drains into a single river, lake, or aquifer. Every drop of water that falls inside the watershed eventually ends up in the same place. What humans do on that land affects what ends up in the water, both above ground and below. The 2024 standard splits water into two categories students need to think about: surface water (rivers, lakes, streams, ponds, reservoirs) and groundwater (water that soaks down through the soil and collects in underground aquifers).

Students need to analyze both beneficial and harmful influences of human activity on these systems. On the harmful side, factories and treatment plants can release pollutants directly into rivers (point source pollution). Farms can lose fertilizer and pesticides to runoff that washes into streams. Cities have parking lots and roads where oil drips and trash collects, and the next rain carries everything into storm drains and out to natural waterways. Septic systems and leaking underground tanks can contaminate groundwater. Overpumping aquifers can drain them faster than rain refills them.

The beneficial side is just as real and often gets skipped. Wastewater treatment plants clean sewage before returning the water to rivers. Farmers using cover crops, terracing, and reduced fertilizer protect the watershed. Cities install rain gardens and permeable pavement that filter runoff before it reaches streams. Conservation easements protect the land around important rivers and recharge zones for aquifers. Reforestation along stream banks reduces erosion and filters runoff. The big idea students should walk away with is that human activity shapes water quality both ways, and being able to analyze a real situation means weighing the positives against the negatives, not just listing what's wrong.

💬 From Chris's Classroom

The move that worked for me on this one was building a cheap watershed model out of a crumpled piece of butcher paper and washable markers. Draw neighborhoods, farms, factories, and a river at the bottom. Have kids color each area a different color. Then spray it with a water bottle and watch the colors bleed down into the river. Every year, students would stare at that muddy river and realize it came from everywhere. That was the moment nonpoint source pollution stopped being a vocabulary word. Don't skip the model just because it feels simple. The concept is actually hard without it.

⚠️ Misconceptions Your Students May Have

These are some of the most common misconceptions. Knowing what to look for can help you get ahead of them.

"Pollution is only a problem when you can see it in the water"

✓

Visible pollution like trash and oil sheens are obvious signs, but many of the most damaging pollutants are invisible. Dissolved fertilizer, pesticides, heavy metals, and bacteria can all be in water that looks clear. The damage shows up downstream in fish kills, algal blooms, and drinking water problems. Clear water doesn't mean clean water.

"Water pollution only comes from factories"

✓

Factory discharges are one important category (point source pollution), but in many watersheds, nonpoint source pollution does more damage. That's the runoff from yards, parking lots, farms, and streets that collects pesticides, oil, fertilizer, and sediment every time it rains. Individual contributions feel tiny, but they add up across a whole watershed.

"Extra fertilizer is good because it feeds plants in the river too"

✓

Fertilizer does make things grow, which is the problem. Excess nitrogen and phosphorus cause algae to bloom in huge populations. When the algae die, bacteria decomposing them use up the oxygen in the water. Fish and other aquatic animals suffocate. That process is called eutrophication, and it's responsible for dead zones like the one in the Gulf of Mexico.

"Taking shorter showers is all there is to water conservation"

✓

Household water use matters, but most freshwater consumption in the United States goes to agriculture and industry. Fixing leaky pipes, improving irrigation systems, planting drought-tolerant landscaping, and reducing water-intensive food choices often have larger effects than a shorter shower. Students should see conservation as a system-wide set of choices, not just a personal habit.

📓 Teaching Resources for 7.11A

These resources are aligned to this standard.

Complete 5E Lesson

Human Activity & Water Complete Science Lesson

The full unit for 7.11A: differentiated station labs, editable presentations, interactive notebooks (English + Spanish), student-choice projects, and assessments. Built on the 5E model.

⏱ Best for: Full unit coverage • Multiple class periods

Station Lab

Human Activity & Water Station Lab

9-station hands-on lab covering point source pollution, nonpoint source pollution, agricultural runoff, and water conservation with input stations (Explore It!, Watch It!, Read It!, Research It!) and output stations (Organize It!, Illustrate It!, Write It!, Assess It!). Print and digital. English and Spanish.

🔬 Best for: Core instruction • 1-2 class periods

Student Choice Projects

Human Activity & Water Student Choice Projects

Choice board with nine project options plus a "design your own" pathway. Students demonstrate their understanding of water pollution and conservation through writing, building, illustrating, presenting, or digital formats.

🎓 Best for: Project-based assessment • 2-3 class periods

🌎 Phenomenon Ideas for 7.11A

Use these real-world phenomena to anchor your lesson. Show students the phenomenon first, let them wonder, then build toward Human Activity & Water as the explanation.

🔎

Phenomenon 1

The Gulf of Mexico Dead Zone

Every summer, a region of the Gulf of Mexico near the mouth of the Mississippi River becomes a "dead zone" where oxygen levels drop so low that fish, shrimp, and crabs either flee or die. The zone can cover thousands of square miles. Scientists have traced the cause back to fertilizer runoff from farms across more than 30 states along the Mississippi watershed. The nutrients fuel massive algae blooms that, once they die, pull oxygen out of the water as they decompose.

💬 Discussion Prompt

"Fertilizer is put on fields hundreds or thousands of miles from the Gulf. How does something applied in Iowa or Ohio end up affecting fish in Louisiana?"

🔎

Phenomenon 2

A Parking Lot After a Summer Storm

After a hard rain, the water rolling off a big-box store parking lot often has a visible rainbow sheen on top. That's oil, antifreeze, brake dust, and gasoline from hundreds of cars, now lifted off the pavement and heading toward a storm drain. Most storm drains in Texas lead directly to creeks and rivers with no treatment. Multiply that one parking lot by every parking lot in the city.

💬 Discussion Prompt

"No single car dripped much oil on that parking lot. So where did all of that pollution come from, and why is it so hard to point at a single person or company as the source?"

🔎

Phenomenon 3

Lake Meredith, Texas, Drops Every Year

Lake Meredith in the Texas Panhandle was built in the 1960s as a major water source for Amarillo and other cities. Over decades, the lake's water level dropped dramatically because of drought, evaporation, and water drawn from the surrounding Ogallala Aquifer for farms. The underlying aquifer is also being drained faster than rainfall can refill it. Scientists call this kind of water "fossil water" because once it's gone, it won't come back in our lifetimes.

💬 Discussion Prompt

"If groundwater refills far more slowly than we pump it out, what does that mean for farming and drinking water in the region over the next 50 years? What choices would need to change?"

💡 Free Engagement Ideas for 7.11A

Crumpled Paper Watershed

Crumple a piece of butcher paper or a paper grocery bag, then gently uncrumple it so the peaks and valleys remain. Students use washable markers to draw a farm, a neighborhood, a parking lot, and a factory in different zones. Mist the "landscape" with a water bottle and watch colors bleed downhill into a common stream. This is the point source vs. nonpoint demo in 15 minutes.

Materials: Butcher paper or brown grocery bags, washable markers, spray bottles, trays

Pollution Card Sort

Make index cards with real-world scenarios: "an oil tanker spills into a river," "fertilizer washes off a soccer field," "a sewage plant has a broken pipe," "rainwater picks up pesticides across a neighborhood." Students sort each card into point source or nonpoint source piles. Then they rank each one by how easy or hard it would be to fix.

Materials: Index cards, markers, sorting mats

Algae in a Jar

Fill two mason jars with pond water or tap water plus a pinch of soil. Add a small amount of liquid plant fertilizer to one jar and nothing to the other. Cap both jars and place in sunlight for a week. The fertilizer jar typically turns visibly greener as algae bloom. Students connect excess nutrients to eutrophication right in front of them.

Materials: 2 mason jars, pond or tap water, soil, liquid plant fertilizer, sunny window

Home Water Audit

Send students home with a one-page data sheet. Over 24 hours they track how many times the sink runs, the length of showers, toilet flushes, and any visible outdoor watering. They return with totals and calculate their household's approximate daily water use using standard gallons-per-action numbers. Groups then brainstorm three realistic conservation changes based on their own data.

Materials: Data sheet, calculator, reference card with gallons-per-action

Pacing Guides | Texas Hub Module

Free Planning Tools

Year-at-a-Glance Pacing Guides

Practical, week-by-week scope and sequences for grades 4-8. These tell you what to teach and when to teach it. Updated for the 2024 TEKS.

4^th

Grade Science

PDF

Download Free

5^th

Grade Science

PDF

Download Free

6^th

Grade Science

PDF

Download Free

7^th

Grade Science

PDF

Download Free

8^th

Grade Science

PDF

Download Free

Free download. No email required. Updated for the 2024 TEKS with linked activities for every unit.

Trusted Across Texas | Texas Hub Module

Texas Teacher Community

Trusted Across Texas

From the Rio Grande Valley to the Panhandle, Texas science teachers are using Kesler Science to save time and engage students.

Texas Schools and Districts
Love Kesler Science

What Teachers Are Saying

Sandra G.

via email

"Complete, concise, time saving treasure chest of ready-made lessons that fit my standards. Cuts my prep time, increases student engagement, and makes it easier to have a student-led classroom."

Stacy D.

via email

"It is easy to access, updated frequently, well-supported when I have questions, and everything I need is provided. No surprises."

Debra A.

via email

"Kesler has helped me differentiate instruction for students, move toward more inquiry-based labs, and kept me from losing my mind!"

Admin Section | Texas Hub Module

For Administrators

Give Your Science Teachers Everything They Need

School and district licenses give your teachers access to every resource they need, including station labs, inquiry labs, anchoring phenomena, presentations, escape rooms, and much more. One purchase covers the grade levels you need.

✓ PO-friendly. We accept purchase orders
✓ Volume discounts for 10+ teachers
✓ Free PD session for departments of 5+
✓ Aligned to the 2024 TEKS standards

Request a Quote Schedule a Demo

See It in Action

Book a walkthrough and we'll show you how Kesler Science fits your campus.

Book Demo Call

No pressure, no hard sell

Rosemarie C.

via email

"My assistant principal stopped in my room and immediately noticed how the students were engrossed in their centers and how they moved seamlessly from center to center. Also the built-in modifications really impressed!"

Cassandra G.

via email

"It provides differentiated instruction for all types of learners, allowing them to become more engaged."

Margaret I.

via email

"I love it all!! I have become a facilitator in my class and I love the excitement it brings to my class. The kids love all that we do with the Kesler products."

Texas Science Teacher Resource Hub

🚀 Jump to Your Grade

7th Grade TEKS Standards

Human Activity & Water

💡 What This Standard Actually Means

⚠️ Misconceptions Your Students May Have

📓 Teaching Resources for 7.11A

🌎 Phenomenon Ideas for 7.11A

The Gulf of Mexico Dead Zone

A Parking Lot After a Summer Storm

Lake Meredith, Texas, Drops Every Year

💡 Free Engagement Ideas for 7.11A

Crumpled Paper Watershed

Pollution Card Sort

Algae in a Jar

Home Water Audit

Year-at-a-Glance Pacing Guides

Trusted Across Texas

Texas Schools and DistrictsLove Kesler Science

What Teachers Are Saying

Give Your Science Teachers Everything They Need

See It in Action

Texas Schools and Districts
Love Kesler Science