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• TLF-IDM008653

This web page contains a video clip, animations and student worksheets exploring the dissolving of ionic solids in water. The video clip has both filmed and animated scenes that compare the dissolving of sodium chloride with melting and show how the dissolving process can be represented by chemical equations. Important ...

• TLF-IDM015928

Compete in a game show against characters Einstein and Pythagoras to identify three different mystery objects. Each of the objects is the end product of a science demonstration. Compare your ideas and predictions with the host Bernie Hobbs's identification of the objects and her explanation of the science behind them.

• TLF-IDL2365

Test the physical properties of kitchen substances such as pepper, detergent and butter. See whether they float or sink, foam or dissolve in hot or cold water. Test whether stirring makes a difference. Test and identify two substances such as cream or peanut butter. This learning object is a combination of two objects in ...

• TLF-IDL2367

Test the physical properties of kitchen substances such as raw sugar, olive oil or salt. See whether they float or sink, foam or dissolve in hot or cold water. Test whether stirring makes a difference. This learning object is one in a series of four learning objects. The series is also packaged as two combined learning objects.

• TLF-IDL2369

Test the physical properties of two unknown kitchen substances such as cream or olive oil. See whether they float or sink, foam or dissolve in hot or cold water. Test whether stirring makes a difference. Look up a data table of known properties and identify the unknown kitchen substances. This learning object is one in ...

• TLF-IDL3070

Use the 'particle model' to explore properties of matter. Compare the arrangement and movement of particles in the three phases of matter: solids, liquids and gases. Explore how substances can change between the three phases. For example, look at what happens when water changes state through a physical process such as melting ...

• TLF-IDM016259

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand what happens, in terms of energy and particle movement, when a substance changes state from solid to liquid to gas. There is a two-question quiz and a summary slide.

• TLF-IDL2358

Solve crimes by identifying pure substances. Carry out chemical tests on common substances such as salt, baking soda and sugar. Observe and record how each substance reacts with a range of liquids and to heating. Build up a data table of chemical properties and use it to match mystery substances found at crime scenes. This ...

• TLF-IDL2362

Solve crimes by identifying pure substances and components of mixtures. Carry out chemical tests on a mystery substance such as salt, baking soda or sugar. Observe and record how a substance reacts with a range of liquids and to heating. Refer to a data table of chemical properties and use it to match a mystery substance ...

• TLF-IDL2364

Solve crimes by identifying substances in mixtures. Carry out chemical tests on a mixture of common substances such as salt, baking soda and sugar. Observe and record how each substance reacts with a range of liquids and to heating. Refer to a data table of chemical properties and use it to match mystery substances found ...