Curated OER
Soil Layers
Ninth graders identify the different layers of soil. In this earth science instructional activity, 9th graders explain how limestone layers are formed. They identify the different parts of the coral colony.
Curated OER
Tree Friends
Students are introduced to tree structure and use. They identify their special tree using all senses except sight. Students identify six different internal parts within a cross section of tree trunk (bark, phloem, xylem, cambium,...