We found 101 resources with the concept sediment
Weighing the Evidence for a Mass Extinction: Part 1 – In the Ocean
6th - 12th CCSS: Designed
New ReviewExtinction events have happen throughout geologic history, but only five mass extinctions occurred over the last 4.5 billion years. Scholars view fossils from a layer of sediment during an extinction event and observe patterns to draw...
Winogradsky Columns: Microbial Ecology in the Classroom
9th - 12th CCSS: Adaptable
New ReviewSubstances that decompose with the help of living organisms do so at different rates. Scholars experiment with Winogradsky columns to determine the rate of decomposition, the oxygen and sulfide content changes, and bacteria levels. The...
Reflecting on Your Work—Cardiac Output, Rates of Change, and Accumulation
9th - 12th
Never make the same mistakes again. Young learners reflect on their work from the Cardiac Output unit. They study two additional situations, sediments in the Des Moines River and blood flow in the brain, and consider similarities to the...