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Moving Image

Chemical structure of alcohols

Did you know that there is a chemical series of related compounds called alcohols? Explore the chemical structure of alcohols in this clip, and find out an important property they possess.

Teacher resource

Fuels: biofuels part 2: distilling an ethanol mixture - practical activity

In this practical activity, students perform a microscale distillation of an ethanol solution, which models the kind of process that is used to separate bioethanol from a fermentation mixture. This experiment is the second of three experiments on fuels. It follows on from, and provides support material for, the practical ...

Image

Preserving an insect specimen in the field

This is a colour photograph of a scientist in the field preserving an insect specimen. He is using forceps to place the insect into a hand-held vial containing a preserving liquid such as ethanol.

Image

Malaise trap in the field - asset 3

This is a colour photograph showing insects caught in a collecting jar on a malaise trap.

Image

Child's wrap (cloak or shawl), c1875

This is a child's wrap woven from muka (flax fibre) using the traditional Mäori ornamental weaving technique called kete whakawaitara. It has narrow vertical stripes of orange and purple dyed muka on a background of undyed weaving, and a striped fringe of coloured wools. Two cords with tassels are attached to the top. It ...

Image

Ethanol molecule

This is a colour image of a model of a molecule of ethanol, CH₃CH₂OH. In this model, atoms are represented by coloured spheres held together by grey rods that represent covalent bonds. The molecule contains two carbon atoms (the black spheres), one oxygen atom (the red sphere) and six hydrogen atoms (the grey-white spheres).

Image

Methanol molecule

This is a colour image of a model of a molecule of methanol, CH₃OH. In this model, atoms are represented by coloured spheres held together by grey rods that represent covalent bonds. The molecule contains one carbon atom (the black sphere), one oxygen atom (the red sphere) and four hydrogen atoms (the grey-white spheres).

Video

Landline - Ethanol Special, 2006: Kicking the oil habit

This clip shows the USA and Brazil's commitment to use ethanol to fuel motor vehicles. The clip opens with scenes in some US states where the addition of ethanol is mandatory, followed by 2006 footage of President Bush announcing increases in funding for ethanol research to the US Congress. The clip then switches to Brazil, ...

Video

Landline - Ethanol Special, 2006: 'Clean, green and healthier'

This clip shows the health risks of petrol- and diesel-driven vehicle fuel exhausts within a context of advocating the biofuels ethanol and biodiesel. It opens with graphic scenes of truck and car exhausts as the voice-over explains how biofuels will gain support. Graphic images of particles superimposed on exhaust fumes ...

Teacher resource

Biofuels

This is a unit of work about ethanol and other biofuels. The unit revises students understanding of the carbon cycle and renewable and non-renewable fuel sources. The inquiry focuses on a series of experiments that examine the effect of temperature on the fermentation of yeast and to determine the flash point of ethanol ...

Moving Image

Biofuels – From Sorghum to Ethanol (video)

This is a video [6:05 min] about the production of ethanol from sorghum at the Dalby Bio-Refinery in Queensland. The video describes and illustrates the stages in the production process including milling the sorghum into ‘flour’; mixing the flour with water to hydrolyse the starch; adding enzymes to liquefy the starch (the ...