AGUA HEDIONDA LAGOON FOUNDATION /  AGUA APPRENTICES PROGRAM

AGUA APPRENTICES PROGRAM

Welcome to the Agua Apprentices Program

An online lesson and activity guide of environmental and science lessons to complete in your own space, from the Agua Hedionda Lagoon Foundation. Apprentices can complete three lessons per “season” to be named an “Agua Master”. (Level 1 - Agua Novice, Level 2 - Agua Journeyman & Level 3 – Agua Master). There are two video’s per lesson, the educational message, then the activity as well as a printable lesson plan. Lessons are most applicable for K – 4th grade.  

 

The lessons were made to be replicable in your own space, meaning supplies around a common household. Don’t have the supplies? Stop by the Discovery Center, and grab a pre-made kit. The kits will be labeled outside the main doors in a green mini library cabinet. (use photo attached to show where). The Discovery Center gates will be locked, use the turnaround parking space to quickly park and grab your kit. Kits are first come first serve.

Lesson 1: Outdoor Archaeology

Have you heard the word archaeology before? Archaeology is the study of human history and prehistory through the excavation of sites or digs and the analysis of artifacts and other physical remains.  Artifacts can be things like pottery, tools, skeletons or buildings. Archaeologists study human activity, and life that roamed the earth before people, from thousands of years ago all the way through today. In addition to artifacts, how else do we learn about our history?  One way is through fossils! A fossil is the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock. When a fossil is found in the earth a scientist can run tests to date the fossil so we can learn and understand the plants and animals that lived in different times.  All these things can help scientists and archaeologists figure out where we lived, how we lived, what we ate amongst many other behaviors and lifestyles.

We are going to be archaeologists today. When an archaeologist starts digging for artifacts, they keep careful notes about where items are found.  Most importantly, how deep in the ground the artifact is.  Why do you think that is important?  The deeper and artifact or fossil is found, the older it is. From this, archaeologists can place artifacts or fossils in chronological order (order of events). Sometimes though the ground gets disturbed and artifacts shift up down and all around.  

 

Now that we know a little about archaeology and fossils, it is time to become an archaeologist.​

Set-up and Supplies
  • Different sized paint brushes, cotton swabs, dry sponge (optional)  

  • Strainer

  • Sticks from outside

  • Twine or string

  • Notebook or paper to record findings 

  • Pen or pencil 

  • Various everyday household items (different sizes) to bury 

  • Play shovel (optional)

  • Gardening gloves (optional)

Activity

1. First, have your guardian gather various household items to bury.

Examples can be a pen, small toy, piece of clothing or anything that is okay to get dirty. For older kids it’s best to choose items that are difficult to identify without their context, such as the spring from a pen, or the spool from a dental floss container.

2. Have your guardian find a spot outside to create the arc excavation or dig site. 

In your yard, your guardian will bury the items at varying depths in a plot of dirt. Dry, sandy soil is best, as moist soil can make filtering the items through the strainer difficult.

3.Lastly, have your guardian will mark off the boundaries of the area in which the items were buried using sticks and string.

4. Now, with your guardian plot the “dig site” with in a notebook before beginning the "excavation" so that you will have a place to record your findings.

5. Use the play shovel or your hands with garden gloves to gently scrape or dust away layers of dirt, which can then be sifted through for artifacts using the strainer. Use the paint brush, toothbrush, dry sponge or cotton swab to gently clean away dirt from small objects. 

 

6. Once an artifact is found, it can be recorded in your notebook: object description, where it was found, and at what depth etc... Be creative and detailed with your descriptions! 

If you don’t know what an artifact is, guess in your notebook what it could be and what is could have been used for. 

> VIEW OUTSIDE ARCHAEOLOGY PDF

 
Lesson 2: Food Chains and Food Webs

A food chain is linear network of links in a food web starting from producer organisms and ending at apex predator (consumers), detritivores, or decomposer species. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem A food chain also shows how the organisms are related with each other by the food they eat. Producers are living thing that can produce or make its own food.  Consumers are living things that eat other living things. Types of consumers are herbivores, carnivores and omnivores. Herbivores eat only plants.  What eats an herbivore? Carnivores eat meat only and will eat other herbivores. Omnivores eat both plants and meat, so they will also eat other herbivores. A decomposer is a living organism that eats organic matter such as rotting or dead plants and animals and leftover food like apple cores and half-eaten sandwiches. Examples of decomposers are worms, mushrooms, slugs and bacteria. 

In a food chain, it sounds like animals and other living organisms only eat one thing.  In nature, most animals eat many different types of food.

Set-up and Supplies
  • Poster board 

  • Pencil 

  • Colored pencils, crayons or markers

  • Food Chain Cards

  • Scissors (optional)

  • Glue 

Food Chain Activity

1. Cut out the food chain pictures and color them.

2. On your poster board, draw a picture of a sun in the middle. 

3. We are going to put your cards on the poster board one at a time.  Put them on the outside of the board and leave the middle open.  

4. Glue the pictures of the plants on the board first. Then, glue the pictures of the animals on poster. 

5. Your object is to draw a line between your plant or animal and something it eats or something that eats it.  Since plants don’t “eat” anything, what do they need to survive?  Now draw a line between your plants and the sun.  

Is this complete? 

This is a little messier than a simple food chain.  What does this look like? A web. This is called a food web and is a more accurate picture of how all the plants and animals interact.  A food web is all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. What would happen to the food web if one of the plants or animals disappeared? If the animal is high on the food chain, then all the animals or plants it eats would increase. Would this be problematic or beneficial?  If the animal is low on the food chain, then all animals above it will go hungry.  Everything in this web depends on all the others to keep a balance.  What affects one of them affects them all. 

Food Web Challenging Activity

Now that you have gotten to know food webs, it is time to create your own. Here’s what your food web must have:  

  • 7 living things in your web

  • There must be at least 2 producers, 2 consumers and 1 decomposer 

  • Use pictures and words

  • All the plants and animals must be from the same habitat

1. Draw a sun again the middle of the back of your poster board. 

2. Decide what habitat you are going to use for your own food web. 

3. Next, pick the 7 living things that exist in your habitat. Remember, at least 2 need to be produces, 2 need to be consumers and 1 needs to be a decomposer.  

4. On the outside of the poster, begin drawing and writing each of the livings animals and organisms you picked. Remember, leave the middle open. 

5. Your object is to draw a line between your plant or animal and something it eats or something that eats it.  Since plants don’t “eat” anything, what do they need to survive?  Now draw a line between your plants and the sun.  

> VIEW FOOD CHAIN AND FOOD WEBS PDF

 
Lesson 3: Decomposer Bug Hunt

What is the first thing that comes to your mind when you see the word decomposer?  Usually it’s the icky things but the word that should come to mind is essential.  What is a decomposer? A decomposer is a living organism that eats organic matter such as rotting or dead plants and animals and leftover food like apple cores and half-eaten sandwiches.  Examples of decomposers are worms, mushrooms, slugs and bacteria. When decomposers eat organic matter, they pass it through their bodies and break it down into compost. Nature’s way of recycling. Out in nature, decomposers live under logs, rocks, or leaves. They feast on organic matter and leave behind nutrient rich compost for gardens, soils and the land. Since decomposers help speed up the natural process of decay, some people create homes for decomposers in their backyard.

Why do you think Decomposers are essential to all habitats? To understand why decomposers are so important, you must understand how habitats work.  Plants are almost always the base of every food web on the planet.  A food web is a group of connected food chains. A food chain is linear network of links in a food web starting from producer organisms and ending at apex predator (consumers), detritivores, or decomposer species. A food chain also shows how the organisms are related with each other by the food they eat. Producers are living thing that can produce or make its own food.  They take the energy from the sun, carbon dioxide from the air, and water and minerals from the soil to grow.  Since, Decomposers release nutrients, such as carbon and nitrogen, back into the environment these nutrients are recycled back into the ecosystem so that the producers can use them. Consumers are living things that eat other living things. Types of consumers are herbivores, carnivores and omnivores. Herbivores eat only plants. They take the plant material, water, and oxygen to grow.  What eats an herbivore? Carnivores eat meat only and will eat other herbivores. Omnivores eat both plants and meat, so they will also eat other herbivores.  Do you see any problems with a system that only has producers and consumers? It creates a one-way system from producer to consumer. 

Nature loves a circle!  Nothing wasted!  The stability of an ecosystem depends on the actions of the decomposers. Imagine what would happen if there were no decomposers? Wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients. Other nutrients necessary for an organism to function properly would also be insufficient. Overall, many organisms could not exist.

Do humans play a role?  Yes! We eat mushrooms which are decomposers. We also help decomposers by composting and recycling which helps to reduce waste. Decomposers cannot survive well in landfills (where waste goes) because they don’t receive enough air or water. 

We are going to find decomposers by going on a bug hunt! 

Set-up and Supplies
  • Notebook or paper to record findings 

  • Pen or pencil 

  • Colored pencils, crayons or markers

  • Gardening gloves (optional)

  • Decomposer Bug Sheet (optional) 

Activity

1. Grab your notebook or paper and a pencil to record your notes and findings.

2. In your backyard, or with your guardian go out front to search for decomposers.  You might need to use gloves (if you don’t want to get your hands dirty) to move rocks or logs to find decomposers. 

3. Try to find as many decomposers as you can.

4. In your notebook, write down each type of decomposer you find. Record the type, where your found, if it was alone, and any other details you want. Also, draw a picture of the decomposer and write down any characteristics or details about it because later you will color in your drawings.

5. When you have completed your outdoor bug hunt, take your markers, colored pencils or crayons and color in your decomposer drawings. This will help you remember each decomposer and bring your decomposer bug guide to life. 

Challenge Activity

Can you think of other circles in nature? Examples are the seasons (winter, spring, summer and fall), O2 to CO2 from animals and plants, the water cycle and recycling. 

1. Think of other circles in nature or pick one from the example above. 

2. Draw a picture of the circle in nature you pick with arrows showing how the circle moves. 

> VIEW DECOMPOSING BUG HUNT PDF

 

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The Agua Hedionda Lagoon Foundation is an exempt organization as described in Section 501(c)(3) of the Internal Revenue Code; EIN 33-0411888.