Science / Year 7 / Science as a Human Endeavour / Nature and development of science

• TLF-IDL5774

Control the motion of the Earth in its orbit around the Sun. Work out how the Earth’s orbit and the tilt of its axis determine seasons in the different hemispheres. Work out how the Earth’s orbit and the tilt of its axis determine day length in the different hemispheres. Examine the heating effect of the Sun. Compare seasons ...

• TLF-IDL1

Follow the passage of food through the human body. Select foods and drinks and decide how to digest them. For example, choose to chew, to add saliva to the mouth or add gastric juices to the stomach. Watch how the body reacts to changes. Find out more about digestion along the way and answer questions.

• TLF-IDM015429

<span style="color: rgb(51, 51, 51);">Discover how space exploration has developed over the years. Find out about different space missions and experiments, and a range of spacecraft from the early probes to more complex shuttles. Where do you think space exploration might take us in the future?</span>

• TLF-IDM016514

This 11 minute video segment from Catalyst explains how the sun can impact on Earth's power grid and satellite communications. This program also describes recent technology to study the sun and understand the causes of coronal mass ejections.

• TLF-IDM015437

Learn how Galileo Galilei's work overturned Aristotle's ideas about falling objects and led to an understanding that Earth revolves around the sun. Find out how Isaac Newton showed that the laws of motion on Earth and in space are the same, and that he discovered that the gravitational force of attraction between any two ...

• TLF-IDM016084

This is an interactive website about Australia's savannas. It has four main sections providing information about where tropical savannas are located across the world; the importance of termites in Australia's tropical savannas ecosystem; the lifecycle of the termite; and the research being conducted in Australia's savannas. ...

• TLF-IDM020174

Watch and listen as Dr Graham Phillips explains what has been discovered about our universe in the last decade or so. What did the WMAP satellite study? What did it confirm? The scientists in this story talk about being surprised to find that the universe is expanding at an increasing pace. What do they say is responsible ...

• TLF-IDM019967

The Bureau of Meteorology records temperatures daily at around 700 sites in Australia. There are also around 6000 sites that report rainfall information. Why is long term monitoring of weather important? What insights can this sort of data give scientists?

• TLF-IDM020213

Visual art and science are often considered to be separate fields. Watch as Phred Petersen talks about the way he combines his passions of photography and science. What is the role of technology in enabling this crossover? What kinds of scientific discoveries can be assisted by high-speed photography? And how can scientific ...

• TLF-IDM020990

A database tracking the last 60 or so years of heatwaves shows that they are getting longer, more frequent and more intense in Australia. In this clip, climate scientist Dr Sarah Perkins-Kirkpatrick explains how and why. Overall, she describes that the biggest increase has been in the frequency of heatwaves in Australia, ...