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• TLF-IDA003900

This activity invites students to examine the baby plants inside the seeds we eat and explore the various structures that protect and feed a developing plant embryo. The activity includes a list of tools and materials required, what to do and notice, an explanation for the underlying science of what students observe and ...

• TLF-IDA003984

This 101 page booklet explores minerals and crystals. The resource includes sections on identifying minerals, significant minerals and gem resources in Australia and the uses of crystals. The booklet contains activity ideas and experiments for teachers and students.

• TLF-IDA003994

This activity explains commonly used magnitude scales, provides background information on earthquake intensity and includes an extension task to map the impact of an earthquake. The worksheet activity can be adapted for student needs.

• TLF-IDA003902

This activity invites students to explore the process of seed germination and the early phases of plant development. The activity includes a list of tools and materials required, what to do and notice, an explanation for the underlying science of what students observe and suggestions for further activities.

• 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-IDA003990

This 58 page booklet explores geological timescales in the context of the Australian continent. Each section discusses a single geological time interval, and outlines the major geological, climatic and biological events which occurred in that interval, including continental drift, the break-up and amalgamation of continental ...

• TLF-IDA003996

This activity introduces weathering and erosion by investigating why river pebbles are often rounded. The download includes background information for teachers and an activity sheet for students. The activity demonstrates the process of erosion using sugar cubes. Students are asked to predict what might happen (a hypothesis) ...

• TLF-IDA003893

This activity invites students to measure the efficiency of solar cells as they convert sunlight to power. The activity includes a list of tools and materials required, assembly instructions, what to do and notice, an explanation for the underlying science of what students observe and suggestions for further activities.

• 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-IDM016060

This resource is a web page providing information about an experiment on the growth rate of different chicken breeds carried out by students at James Ruse Agricultural High School in NSW, which shows the influence of selective breeding on chicken weight. It includes a side-by-side column graph comparing the weight of egg ...