Science / Year 7 / Science Understanding / Biological sciences

• TLF-IDM025860

In this lesson, you will learn how and why scientists organise living and non-living things in a logical order. Diana will show you how to construct a dichotomous key for classification, and she’ll give you a chance to try it yourself at home.

• TLF-IDM020210

When it comes to dropping food, have you heard of the 5-second rule? Or the 3-second rule? Watch this video to learn what really happens when you drop food. In order to cause disease, what must bacteria do? What circumstances allow bacteria and viruses to contaminate food more successfully?

• TLF-IDM016595

This ABC In Depth feature article gives a range of examples of adaptations and responses of Australian alpine ecosystems, plants and animals to cold conditions.

• TLF-IDM015860

Discover the cultural significance of some native plants to the local Indigenous peoples of the Botany Bay region. Find out the many ways these plants can be used. Gardening Australia's Clarence Slockee joins Dean Kelly (park officer) and the Towra Team, a group of trainees from the La Perouse Aboriginal Community, on a ...

• TLF-IDM020835

Imagine a world where all plants were wiped out. How would we feed ourselves? Seed banks around the world store seeds and safeguard them for future use in case of such a scenario. The largest and most comprehensive seed bank of all is the Doomsday Vault in the Arctic. Why do you think it's located there?

• TLF-IDM019753

View descriptions of Queensland fauna together with maps of distribution, images and endangered species rating. Animals are grouped by mammals, reptiles, fishes, amphibians, birds or insects and other invertebrates. Info pages include images and animal sounds. Free when reviewed on 12/5/2015.

• TLF-IDM019639

View descriptions of Victorian fauna together with maps of distribution, images and endangered species rating. Animals are grouped by mammals, reptiles, fishes, amphibians, birds or insects and other invertebrates. Info pages include images and animal sounds. Free when reviewed on 12/5/2015.

• TLF-IDM019638

View descriptions of South Australian fauna together with maps of distribution, images and endangered species rating. Animals are grouped by mammals, reptiles, fishes, amphibians, birds or insects and other invertebrates. Info pages include images and animal sounds. Free when reviewed on 12/5/2015.

• TLF-IDM016391

This 7 minute video segment from Catalyst describes the risk factors that impact on turtle survival. Protecting the future of turtle populations on the Queensland coast has been the life's work of Col Limpus for the past 40 years. His efforts have included research and reducing predation from foxes and entrapment in trawler nets.

• TLF-IDM014132

This is a student guide about classification of living things and ecosystems and their management. It contains information and hands-on inquiry activities, and is part of a comprehensive curriculum resource that covers Biological sciences content descriptions in Year 7 of the science curriculum. The resource integrates ...