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• TLF-IDM021495

The expected growth in world population from 6.8 billion in 2010 to over 9 billion by 2050, the demand for food will increase by around 70 per cent. This collection of articles from the CSIRO describes some of the research that is underway to improve the world's agriculture sector to address this growing demand. The web ...

• TLF-IDA003997

This activity demonstrates how much water expands when frozen. Students quantify water's expansion when it freezes and establish how this can lead to weathering (breakdown) of rocks in areas exposed to frequent freezing and thawing temperatures. It is best to set up the demonstration one day ahead and examine the results ...

• TLF-IDA003877

This sequence of five lessons has students learn about food webs and how the changing environment can effect them.

• TLF-IDA003875

This sequence of 15 lessons describes the properties of light and sound, and how they interact with the world around us.

• TLF-IDA003988

This 50 page booklet explains the nature of landslides and gives examples of various historical landslides that have occurred in Australia. It contains a glossary, links to online resources, activity ideas and answer sheets.

• 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-IDA003998

This activity is designed to help students visualise plate boundaries on a spherical Earth, rather than on a flat map. The downloadable PDF includes a model to cut out that shows major plate boundaries, boundary types and highlights our own Indo-Australian plate. The activity includes assembly instructions and pieces to ...

• 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-IDA003976

This video introduces earthquake monitoring using seismometers and seismographs. It also features the National Earthquake Alert Centre. Students are asked to try making earthquakes at home using the accelerometers in their smartphones.

• TLF-IDA003993

This activity examines a hypothetical city and its vulnerability to volcanic hazard risk. It includes background information for teachers, PowerPoint presentation, student activity sheet and worked answers.