Charred bark due to prescribed burning in a forest. Vocabulary Connections – bark, tree, chemical change and forest. Location: Sam Houston State Park. Author: Karl Spencer.
Interesting view of the shoreline of a freshwater lake. Vocabulary Connections – lake, erosion, freshwater and aerial. Location: Lake Mead in Nevada. Author: Karl Spencer.
Ruler used as SCALE to estimate size of orange peel and seeds. Location: Laboratory in Southeast Texas. Author: Karl Spencer
In this scene, a freshwater pond is covered in duckweed (an aquatic plant). A graph is also shown that depicts the growth of algae over time in this pond. Based on this graph, what can you conclude about the general health of the pond ecosystem? Justify. Location: Sheldon Lake State Park. Author: Karl Spencer.