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Why is the ozone hole bigger in the less polluted southern hemisphere?

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?"

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Laptop wrap: Fossilisation

A webpage with a focus on the process of fossilisation that helps explain why it occurs so rarely.

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Sites2See: Databases for science

A page with downloadable examples, exemplars and advice to help integrate database use in teaching and learning for science. Includes suggestions and reasons for using databases in science, practise activities and information on research and benefits, plus links to a range of related resources.

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Gravity

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand that gravity is a force of attraction which acts on Earth towards the centre of the planet, and that the size of the force of gravity depends on the mass of each object and the distance between them. There ...

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Science Talk 2007: Tim Entwistle

An interview and tour of the Royal Botanic Gardens of Sydney and its herbarium with Dr Tim Entwistle, a plant scientist and the NSW Government Botanist. Tim talks to a pre-service teacher from Macquarie University about his love of plants, in particular freshwater algae. In the herbarium we find out why it is so important ...

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Respiration in Plants

This resource consists of automated illustrated slides with voice over presenting information about why plants need to respire, their need for oxygen and a comparison of when respiration and photosynthesis occurs.

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In Vitro-fertilisation

Explore in vitro fertilization in this interactive. The IVF cycle is broken down into seven sequential steps and the related anatomy and specific procedures involved are shown for each step. The organs and functioning of the human female are given in detail through the process.

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Defence Against Disease

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand how microbes can enter the body and how the body tries to prevent this from happening. There is a two-question quiz and a summary slide.

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Laptop wrap: Under universal skies

A webpage with a focus on the electromagnetic spectrum and its links with radio astronomy with supporting activities and links to resources.

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Sites2See: Spreadsheets for science

A page with example resources, exemplars and advice to help integrate spread sheet use in teaching and learning for science. Includes suggestions for use, tutorials and information on research and benefits, plus links to a range of related resources, including a teacher guide to using Microsoft Excel in the classroom

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Measuring Speed

Students use this resource consisting of eleven slides with diagrams, written explanation and voice-over to understand how to work out the speed of a moving object and understand how to make calculations using the relationship between speed, distance and time. There is a two-question quiz and a summary slide.

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The Particle Theory

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand the different behaviour of particles in matter in solid, liquid and gaseous states. There is a two-question quiz and a summary slide.

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Differences between Photosynthesis and Respiration

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand the differences between photosynthesis and respiration. These are summarised in word equations. There is a two-question quiz and a summary slide.

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Mucous Membrane

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand how the mucous membrane lining the respiratory system helps to prevent infection. Three of the eight slides deal with the impact of smoking. There is a two-question quiz and a summary slide.

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Science Talk 2007: Melanie Bishop

An interview and laboratory tour with Dr Melanie Bishop, a benthic marine ecologist at the University of Technology, Sydney (UTS). Melanie talks to students from Epping Boys High School about her work studying benthic marine ecosystems and the animals that live there. Melanie shares insights into a career in marine biology.

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Predicting earthquakes: are we there yet?

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.

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Water and Mineral Salt Uptake

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand that root hair cells absorb water and mineral salts from the soil, and understand how they are adapted for this function. There is a two-question quiz and a summary slide.

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Circuit Diagrams

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand how to draw simple circuits and the symbols used to represent them. There is a two-question quiz and a summary slide.

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Sampling Technique

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand some different methods of collecting animals in the wild. There is a two-question quiz and a summary slide.

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Laptop wrap: Databases in science

A page with a focus on using databases in science that explores a visual database of fossils in NSW.