Science / Year 4 / Science Understanding / Chemical sciences

• TLF-IDM021647

This short video, narrated by ‘Sam the Lamb’ and a group of young wool enthusiasts, explores the properties of one of nature’s most versatile fibres. Viewers will discover how wool can stretch and return to its natural shape when worn; why wool is safe to wear around campfires and in the sun, and how wool can manages moisture ...

• TLF-IDM017939

The element zirconium is often used for its tough, abrasive properties. It also has a secret side. View this clip (developed by students for the 2013 Sleek Geeks Eureka Science Schools Prize competition), which highlights the properties and uses of zirconium in a highly visual and fun way.

• TLF-IDM015755

It might sound 'un-sciencey', and have a bad smell, but red cabbage is actually very useful for testing the pH of liquids. Added to well-known liquids like lemonade or vinegar, red cabbage juice changes to 'pretty colours'. In this clip, Surfing Scientist Ruben Meerman explains the colour changes and how red cabbage juice ...

• TLF-IDM015947

Discover why plastic is harmful to our environment and how recycling helps to reduce its impact. Listen to Jon Dee, founder of Planet Ark, discuss the problem of plastic. Watch as a bag of household items are sorted to identify what can be recycled.

• TLF-IDA004941

This activity kit challenges students to design and build catapults out of recycled and household items. Activities are guided by the design thinking process, and scaffold students to explore simple machines, tools, properties of materials and changing variables in experiments. The guide includes lesson ideas, project instructions, ...

• TLF-IDA004600

In this lesson, students will practise breaking down a process into smaller parts or steps as an introduction to computational thinking.

• TLF-IDA003816

This unit of eight lessons poses the question ‘Are we living sustainably?’ Students use prompts to draw on their prior knowledge to explain what they already know about sustainability. They then investigate why water is precious, explore how water is used around their school and at home. Students then research ways that ...

• TLF-IDM024866

This resource provides information and teaching and learning activities about Victorian wetlands environments. The resource is designed to accompany students on a visit to Cussen Park and to provide a guide to interacting with its interpretative Soundwalk and signage. The activities also provide general information on the ...

• TLF-IDM015713

Are you strong enough to pull two sheets of paper apart? What about two books with the pages intertwined? Watch this experiment performed by Ruben Meerman, the Surfing Scientist, and find out how he tests the presence of friction between pieces of paper.

• TLF-IDR3048

This is a black-and-white photograph of the exterior of an exhibition home made of fibrolite (fibro-cement) that was constructed by James Hardie and Co Ltd (now known as James Hardie Industries). The street outside the home is crowded with people, some of whom have come to view the fibrolite home. The photograph measures ...