4 Geological time scale 1 Keywords: diagramsfossilsgeological time scale Students are provided with a geological time scale which they use to interpret and answer a number of questions. Login to preview
4 Land changes over time 3 Keywords: Earth systemsfossilsrock layersrocks Students use a diagram of a cutting showing exposed rock layers to answer questions about their formation, age, and geological history. Login to preview
4 At the gorge 1 Keywords: Earth systemsfossilsrock layers Students use diagrams of rock layers to answer questions concerning geological history, oldest layer, and to account for the presence of fossils. Login to preview