Close message Scootle has stopped supporting resources that use the Adobe Flash plug-in from 18 Dec 2020. Learning paths that include these resources will have alerts to notify teachers and students that one or more of the resources will be unavailable. Click here for more info.

Science / Year 4 / Science Understanding / Earth and space sciences

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Earth’s surface changes over time as a result of natural processes and human activity (ACSSU075)

Elaborations
  • collecting evidence of change from local landforms, rocks or fossils
  • exploring a local area that has changed as a result of natural processes, such as an eroded gully, sand dunes or river banks
  • investigating the characteristics of soils
  • considering how different human activities cause erosion of the Earth’s surface
  • considering the effect of events such as floods and extreme weather on the landscape, both in Australia and in the Asia region
Cross-curriculum priorities
ScOT terms

Earths crust,  Environmental impact

Video

Fossils: stories in the rock

Come on a journey with young scientist Alex Jaeger as he tells us about fossils found along the Jurassic Coast in Victoria. Find out how the area's landscape and ecosystem have changed over time. Alex explains how fossils are formed and what they reveal about Australia's past in his 2013 Sleek Geeks Eureka Science Schools ...

Video

South Australia's ancient sea fossils

Come on a palaeontologist's dig at Emu Bay, South Australia, and discover some weird-looking creatures frozen in stone. Find out what these fossils tell scientists about life on the ancient sea floor. There is a demonstration of how a fossil is formed, and you'll be surprised by the types of materials that have been preserved.

Video

Geology reveals how Earth changes

See how geology can tell us a story about how Earth has changed over time, as well as help predict natural disasters and save lives. Find out how geology can help you understand the world around you even when you are at the beach.

Video

Lake Eyre - just add water

Imagine a lake that drains water from one sixth of all of Australia but fills up only once every 25 years. Discover the beauty of Lake Eyre in South Australia as it fills with water and transforms the dry outback to an inland oasis that becomes home to thousands of water birds.

Video

Environmental fears over proposed barramundi farm

Managed fish farms are often touted as a sustainable solution to the problem of overfishing. However, a proposed sea cage barramundi farm near Darwin has drawn criticism from environmentalists as well as local fisherman. These groups are concerned about the farm's environmental impact, citing damage caused by similar projects ...

Video

Food shortage: Please, Sir, can I have some more?

Are we headed for food shortages in the future? Many scientists say that food production is becoming a critical issue and that Australia has a part to play in securing food for the world's future. As you watch this clip from 2013, find out how past strategies dealt with the food security issue, and learn about our plans ...

Video

Damming the free and mighty Mekong

The Mekong has been a rare thing: a largely untouched and free-flowing river. Stretching for nearly 5,000 km from the mountains of Tibet to Vietnam's Mekong Delta, it has provided a way of life for millions of people and been an important trading route between south-western China and south-eastern Asia. In this clip from ...

Video

Siberian tigers

Imagine a world where the only place Siberian tigers lived was in captivity. Watch this clip to learn more about the natural habitat of Siberian tigers and the things that threaten their survival in the wild. Chinese scientists are breeding this endangered species in captivity and zoologist, Liu Dan, explains his hope that ...

Video

Protecting exposed lake beds during drought

Visit the Lower Lakes near the mouth of the Murray River in 2009. Step onto the dried-out lake floor and watch what the wind does to the sand. How can planting rye grass help to stop erosion and to control a toxic environment in the mud beneath the sand? Find out in this clip.

Video

How might water shortages in the Basin affect you?

The Murray-Darling Basin is Australia's largest river system and it's an important source of water for many Australian communities and farmers. In this clip from mid-2013, Discover more about the Basin, how it connects people and places, and the impact that drought and people's use has on this natural resource.

Video

River porpoise rescue

Can you imagine seeing porpoises leaping out of the water in a river near you? Sounds unlikely, doesn't it, but that's what people living along the banks of the Yangtze River in China often used to see. These Yangtze finless porpoises are now rapidly disappearing. Find out why and what Chinese scientist Professor Wang Ding ...

Video

Bali: tourism and development

Bali, a world-renowned slice of paradise in Indonesia, is undergoing rapid development to accommodate the increase in foreign tourism. Tourism brings money but it also drives up prices and affects the environment. View this clip to explore the issues experienced by those living in paradise.

Video

Algae farming: a pilot project in the Pilbara

Ever heard of algae farming? It's a new renewable industry beginning to take shape in the Pilbara region of Western Australia. With the ability to produce food, fuel and pharmaceuticals, algae farms could potentially generate billions of dollars. Watch this clip to find out about US company Aurora Algae and the products ...

Video

Why are coral reefs important?

Coral reefs contain a high biodiversity of marine life and they're vital natural assets for coastal communities and cultures. In this clip you will hear from a panel of scientific and community experts as they discuss the importance of coral reefs to billions of people around the world. Discover some perspectives on the ...

Video

Engineering clean rivers

Figuring out how to clean up contaminated rivers is a big challenge. It's also tricky to work out where the most contaminated parts of a river system are and whether its fish are safe to eat. Watch this video and learn how engineering has helped to solve these problems. Why do you think engineers looked to the bottom of ...

Video

Hawkesbury River: tourism and river health

The Hawkesbury-Nepean river catchment provides a useful example of river management issues. This clip shows conservationist canoeists completing their journey along the Hawkesbury River in the 'Source to Sea' project. See what's being done to protect a fragile ecosystem of the river: seagrass. Find out how increased demand ...

Video

Learn about carbon offsets with Dirt Girl

Do you know what a carbon footprint is? Join Dirt Girl, Scrap Boy and Costa to find out! In this video, carbon emissions are measured in balloons. The Sydney Opera House measured the carbon footprint of Dirt Girl's recent show. How many balloons worth of carbon did it produce? What did the Sydney Opera House do to offset ...

Video

Analysing carbon dioxide

Dr Paul Fraser has been part of the Greenhouse Gas team at the CSIRO for over 40 years. His team measures the carbon dioxide in the atmosphere, by taking and analysing air samples from different locations around the world. Paul explains that there are a number of versions of carbon dioxide, made up of different isomers ...

Video

Conserving the Great Australian Bight

What do you know of the Great Australian Bight? Learn about some of the unique wildlife that lives here. What makes it such a good habitat for these marine animals? What are some potential threats facing this pristine environment?

Video

Yucatán Peninsula: Cancún-style tourism

See what has made south-eastern Mexico's Yucatán Peninsula, and in particular its city of Cancún, a popular tourist destination. Listen to different viewpoints on large-scale tourism in the region - one that presents its economic benefits and others that point to its environmental impacts.