A Biome Bonanza!
Inspired to get their students out into the natural world, Bolton Middle School developed a field trip to explore the biomes of Oregon.
by Lisa Terrall, Bolton Elementary School A
fter taking a class for teachers about sustainability several years ago, my teaching partner and I were inspired to get kids out and about and connected to the natural
world more. We looked at our science curriculum and with the help of Bob Carlson and his staff at our district’s CREST Center, we developed a couple of great overnight experiences for our students. In 4th
well as how species have adapted for survival. We also get a good look at some of Oregon’s rocky cliffs and are able to see evidence of past basalt flows.
Our next day is spent in our town of West Linn, at a local
grade, we did a lot of work around plant and animal adaptations, as well as geological changes to the Earth. Living in Oregon, we have easy access to many different biomes in which living things have adapted differently to their environments and lots of locations where evidence of volcanic activity is visible. We developed a 4 day “Biome Bonanza,” during which we spent a day at the coast, a day in an Oak Savannah and two days in the Columbia River Gorge.
Our day at the beach is a day trip. We stop at a spot in the coast range mountains where we can find sea floor fossils at a fairly high elevation. This allows kid to begin to see evidence of plate tectonics and how the crust that used to be the sea floor was lifted and is now part of a mountain. They love discovering and trying to identify the fossils they find and are amazed at how dynamic the Earth is.
Our next stop is at the coast. We spend quite a bit of time exploring local tide pools and finding creatures that live there. Students get to see species they have researched up close and are able to begin to identify the structures and functions of their bodies and how they help with survival in that particular environment. Tide pools are great because they have multiple zones within them and the adaptations are different from zone to zone, as well as from tide pools to other surrounding environments like the ocean or the coastal forests. After our time in the tide pools we take a short forest hike, looking for how the environment is different, as
Nature Conservancy preserve called Camassia. It is walking distance from our school and we are able to see more evidence of basalt flows, as the entire preserve is on top of columnar basalt with much of it exposed. The soil here is very thin and students are able to see how plants have adapted to this condition. They love being able to compare this to the coastal forest they were in just the day before. They are always amazed that the same basalt flow they are standing on stretches all the way to the coast and is contained in the cliffs they were able to see the prior day. It begins to give them a sense
of connectivity and the magnitude of the volcanic events of the past. While we are there, we take the temperature of a pond and get a water sample to test for pH and turbidity when we return to school. Testing the water sample gives our students time to practice using the testing equipment and to recall 3rd grade learning around salmon and what they need (as far as water conditions) to survive.
The next two days of our outdoor experience is spent on the road in the Columbia River Gorge. We take our 4th
on an overnight trip to see more evidence of the basalt flows, learn about the Missoula Floods that shaped the gorge and our local valley, and to do more comparison of the plant and animal adaptations in yet a different environment. We
graders
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CLEARING Fall 2017
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