Science / Year 10 / Science understanding / Chemical sciences

• TLF-IDM019538

This interactive simulation explores atomic structure, elements and the periodic table. In a series of simulations students use the number of protons, neutrons, and electrons to draw a model of the atom, identify the element, and determine the mass and charge; predict how addition or subtraction of a proton, neutron, or ...

• TLF-IDA005851

This interactive simulation explores isotopes and nuclear decay. In a series of simulations students explore how the changing the number of neutrons or protons affects the atomic number and isotope; investigate and predict how the shell model depiction of an isotope based on the isotope symbol or name; and predict the resulting ...

• TLF-IDM020087

This study guide considers the science behind breeding, genetics, health and animal welfare in the cattle and sheep industries - keeping animals free of disease and parasites, improving biodiversity and protecting against feral animals. A range of articles and student activities explores how farmers and scientists are working ...

• TLF-IDM016491

This ABC In Depth feature article discusses the projections of how long will our energy resources will last given that our need for fossil fuels is insatiable, but coal, oil, gas and uranium reserves are finite and some may even be in decline. This article is comprehensive, but it is dated at 2008.

• TLF-IDM016573

This ABC In Depth feature article is a case study shows how the impacts of human activities including irrigation on the environment and agriculture cannot always be predicted. The Ord River has long been touted as a possible northern food bowl. But nearly four decades after the irrigation scheme was created, why has it ...

• TLF-IDM017557

Can you imagine someone who lived over 2400 years ago saying that all matter is made up of atoms? Democritus, an ancient Greek, did. Explore the history of this scientific idea with chemist Amanda Tilbury. Hear how Swedish scientist Jöns Berzelius postulated much later that only living tissue could make an organic compound ...

• TLF-IDM016645

This article provides an excellent model of a scientific explanation. It addresses the question "if the atmosphere in the northern hemisphere is much more polluted than it is in the southern hemisphere, why is there an ozone hole in the south and not in the north?"

• TLF-IDM016305

Ask and expert' ABC article exemplifies some creative approaches of scientists to the significant problem of predicting earthquakes. The science behind the various methods is outlined, their successes and failures and problems for possible future developments.

• TLF-IDM017936

The use of embryonic stem cells for medical research is a hotly debated ethical issue, with much of the discussion focusing on when human life begins. Listen to the views both of scientists and of some people from several faith traditions. In a major stem-cell breakthrough, scientists have discovered a new type of stem ...

• TLF-IDM019535

This interactive simulation explores the effect of greenhouse gases and clouds on sunlight, infrared radiation, and surface temperature of the Earth. In a series of simulations students explore why greenhouse gases affect the temperature; they compare and contrast the behaviour of sunlight and infrared radiation; investigate ...