Science / Year 8 / Science Understanding / Chemical sciences

• TLF-IDM016239

Scientists are not complacent. We still have a lot to learn about the water cycle. The discovery of glacial lakes under the ice in Antarctica actively transporting water between reservoirs was a surprise. These lakes can be up to 3km beneath the ice sheets. The pressure of the ice above helps to melt the ice, forming lakes. ...

• TLF-IDM016610

This resource contains a materials and instruction list and brief explanation for students about the process of burning both ends of a balancing candle. This activity is most likely to be done as a teacher demonstration for safety and classroom management reasons, particularly at primary school level.

• TLF-IDM018516

Imagine trying to pick up a slippery ice cube with just a piece of string. Watch the Surfing Scientist team demonstrate how it can be done, using a surprising additive.

• TLF-IDR1753

This is the skeleton of Phar Lap, the famous racehorse, which was born in New Zealand, raced mostly in Australia and died in unexplained circumstances in the United States in 1932.

• TLF-IDR6367

This is a gold nugget known as the 'Bunyip nugget'. It weighs 50 ounces (1.55 kg). It was found in the early 1970s by a farmer while ploughing near Bridgewater to the west of Bendigo in Victoria, and was purchased by the National Museum of Victoria (now Museum Victoria) in 1978 for $40,000.

• TLF-IDM008838

This is a fact sheet providing information on how we produce hydrogen from fossil fuels and renewable energy sources. The uses of hydrogen are briefly discussed and information is provided about hydrogen fuel cells.

• TLF-IDM008763

This is a colour underwater photograph of marine scientist Candida Savage using a scientific instrument known as the diving-PAM. The diving-PAM is being used to measure photosynthesis in corals in Fiji. Candida Savage is wearing full diving clothing and equipment including mask, wetsuit and oxygen tanks.

• TLF-IDL2354

Build up to six energy chains that make electricity. Select from different energy sources and choose energy converters to match. Examine the type of energy change that happens in each converter. Arrange the converters into the correct chain so that the energy can be delivered as electricity. For example, construct a chain ...

• TLF-IDL2357

Select energy sources and energy converters to build energy chains to power appliances and vehicles. Examine how each energy converter in a chain loses some energy and reduces the energy available for use. For example, show that using a solar panel and an electric motor to drive a car delivers only 16% of the original ...

• TLF-IDL696

Watch an animation of the Earth rotating in space showing day and night, the equinox where locations on Earth experience close to equal hours of daytime and night-time (12 hours) and views of the Earth from above the North and South Poles. Turn an animated model of the Earth to explore how rotation is related to night and ...