Science / Year 9 / Science Understanding / Chemical sciences

• TLF-IDL2562

See how scientists such as Ernest Rutherford have investigated the structure of atoms. Explore possible models. Fire charged particles at atoms and find which model best fits the results. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined learning object.

• TLF-IDL2564

Explore subatomic particles and how they combine to form atoms. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined ...

• TLF-IDL2566

Explore subatomic particles and how they combine to form atoms and ions. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also packaged ...

• TLF-IDM020101

This is a student guide that takes an in-depth look at chemical reactions with individual chapters on the structure of atoms, chemical changes and formula, radioactivity and nuclear energy, energy changes, and reactions involving acids and bases. Each part or chapter of this resource contains information, images and diagrams, ...

• TLF-IDL8033

Use radiocarbon dating to find and compare the ages of ancient remains. Convert organic samples to gas and use a Geiger counter to measure radioactivity. Use calculations and radioactive decay graphs to estimate the age of the samples. For example, check whether a bone from 'Sthenurus', a giant kangaroo, could be younger ...

• TLF-IDM020127

This is a teacher guide containing material to support the planning and implementing of lessons for a unit on chemical reactions. It covers topics such as atomic structure, elements and the Periodic Table, chemical reaction rates and energy, conservation of mass, radioactivity, combustion, and reactions involving acids ...

• TLF-IDL3124

Explore subatomic particles and how they combine to form atoms and ions. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms and ions by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also ...

• TLF-IDL44

Explore how a smoke detector works in a home. Make smoke in a kitchen to trigger the beeping sound of a smoke alarm. Look at a circuit diagram and magnified view to see how an isotope interacts with ionised gases within a circuit gap. This learning object is one in a series of three learning objects.

• TLF-IDM015722

Remember the earthquake and following tsunami that hit Japan in March 2011 and damaged a nuclear power plant? Find out about the damage caused, what exploded and why, and the aftermath of the disaster. What debates about nuclear power plants were reignited by the events in Japan?

• TLF-IDM016565

Coming into contact with a large dose of radiation is known to be hazardous. But will it make you light up like a car dashboard at night? Some anecdotes that will engage the students to learn about radioactivity while dispelling a few myths.