Science / Year 4 / Science as a Human Endeavour / Nature and development of science

• TLF-IDM025103

The koala population in rural NSW has been declining over the years due to drought and heatwaves. What causes some of the temperature extremes experienced in this region? Dr Mella believes koalas normally get most of the moisture they need to stay hydrated from eucalyptus leaves. What has changed in recent years that means ...

• TLF-IDM021774

This resource book includes ideas to support students’ involvement in investigating, exploring, experimenting, designing, creating and communicating their understandings about game changers and change makers from the past who have solved some of the seemingly unsolvable problems, to game changers and change makers of today, ...

• TLF-IDR6865

This is a colour photograph of a giant sea spider ('Dodecolopoda mawsoni') set against a black background. This is a preserved specimen that has lost its original red colouration and faded to orange due to the preserving liquid. The long legs, small body and bright colouration are displayed in the image.

• TLF-IDR6897

This is a colour photograph of a fossil bone set against a black background. This bone is an opalised fossil of a femur, or thigh bone, of a hypsilophodont dinosaur. The blue colouration of this opalised fossil bone is clearly visible.

• TLF-IDR6867

This is a colour photograph of a preserved southern gastric brooding frog ('Rheobatrachus silus'). It is a museum specimen viewed from the front.

• TLF-IDL477

Investigate the role of friction in performance of bicycle tyres. Test how the type of tread affects grip and speed. Choose tyres best suited to track and weather conditions in a time trial. This learning object is one in a series of four objects.

• TLF-IDR6369

This is a photograph showing the mounted hide of Phar Lap, a champion racehorse in the late 1920s and early 1930s. He was a large chestnut-coloured gelding who stood 17.1 hands (about 174 cm) tall.

• TLF-IDR8170

This is a colour photograph showing the carcass of a southern humpback whale ('Megaptera novaengliae') on the wooden slipway of the Tangalooma Whaling Station on Moreton Island in Queensland. The whale is intact with its underside uppermost, showing distinctive colourings and markings, including the ventral grooves. Onlookers, ...

• TLF-IDR6895

This is a colour photograph of an ancient fish ('Wadeichthys oxyops') fossilised in mudstone. This specimen is from the Koonwarra fossil bed in South Gippsland, Victoria. The fins, tail and body scales of the fish are clearly visible. Museum cataloguing numbers are written on the rock.

• TLF-IDL31

Show an alien how much you know about plant life on Earth. Answer a quiz on plant structure and function. Identify labels for plant parts. Match each plant part with its function. This learning object is the last in a series of two objects.