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• TLF-IDA003972

This video presents examples of shell fossils that help us to understand where oceans were located in Australia millions of years ago. The shells lived in shallow marine environments before they died and became part of the rocks formed from sand and silt at the bottom of the water. Brachiopods from Woolshed Creek in Canberra ...

• TLF-IDA003992

This short video examines the process of liquefaction and its impact on buildings and other structures. The video encourages students to investigate some of the ways engineers lessen the impact of earthquakes on buildings and to make their own liquefaction demonstration and extend it into an inquiry activity.

• TLF-IDA003966

This short video demonstrates how to determine the density of a mineral sample. The video explains how to calculate density, then shows students how accurately measure the mass and volume of a mineral sample.

• TLF-IDA003970

This video introduces the National Earthquake Alerts Centre. The video explains that earthquakes are detected by a network of seismometers; each station sends seismic information for analysis and checking by seismologists on duty. The video describes the types of wave forms in earthquakes and the sequence of events in ...

• TLF-IDA003977

This short video introduces rocks from volcanoes and their features using some of the samples in the Geoscience Australia Education Centre. Students are shown different types of lava rock, bombs, obsidian and pumice. The video is suitable for middle primary and older students as well as a general audience; it introduces ...

• TLF-IDA003974

This short video discusses bedrock, obsidian and redstone using real rock samples and references to the Minecraft game.

• TLF-IDA002268

Kevin Bradley, CEO of Save the Bilby Fund, and Cassandra Arkinstall, a researcher and volunteer at Save the Bilby Fund, explain why the bilby is an important indicator of the health of an ecosystem, and how their decline impacts other wildlife. This video gives an overview of what the Save the Bilby Fund does as they work ...

• TLF-IDA003975

This short video introduces the concepts of weathering and erosion by investigating why river pebbles are often rounded. Students can undertake an activity which demonstrates the process of erosion using sugar cubes. They are asked to predict what might happen (a hypothesis) and then observe what does happen and relate ...

• TLF-IDM021144

Join Catalyst reporter Anja Taylor as she visits the Jemez Mountains in New Mexico and discovers the impacts of recent megafires on the landscape there. What is a megafire? And how is a megafire different from a regular wildfire? How have recent fires permanently transformed the landscapes that Anja and Professor Craig ...

• TLF-IDM018248

This three and a half minute snapshot video looks at the environmental impacts of feral goats in the western NSW region of the Murray-Darling Basin. The video looks at the problems created by the estimated 2.5 million feral goats in western NSW such as native vegetation destruction, soil compaction and erosion. It explains ...