Marine trophic pyramid

Food webs throughout the world all have the ...

Simple ecosystem diagram

An ecosystem is a community of living things ...

Fern reproduction

Most ferns reproduce sexually. Dr Leon Perrie ...

The phosphorus cycle

Phosphorus moves in a cycle through rocks ...

Linnean classification system

In the 18th century, Carl Linnaeus published ...

Oil formation

This animated video demonstrates the ...

Tectonic plates animation

This animated video shows the movement of the ...

Using DNA analyses for ...

Dr Patrick Brownsey and Dr Leon Perrie from ...

Understanding food webs

In this video, Associate Professor Stephen ...

Features of the karst landscape

Professor Cam Nelson is on site at the ...

Map of ocean salinity

Much of the open ocean has a salinity between ...

Ocean temperature layers

The ocean has 3 main temperature layers. The ...

Why salinity and temperature are ...

Dr Phil Sutton of NIWA explains why measuring ...

Plant uptake of nitrogen compounds

Once nitrogen is converted into such ...

Parts of a fern

Dr Patrick Brownsey from Te Papa shows us the ...

Different grades of limestone

On site in a King Country limestone quarry ...

Sound in water

Prof John Montgomery, the head of Auckland ...

Map of ocean gyres

Each of the 5 main oceans has an overall ...

Observation in science

Associate Professor Alison Cree and Dr Phil ...

The life cycle of eels

Researcher Erina Watene-Rawiri describes the ...

Why do scientists study the soil?

Along with the water we drink and the air we ...

Surfactants

A surfactant molecule has a hydrophilic ...

Phosphorus availability to plants

A lot of the phosphorus in soils is ...

What is flocculation?

ESR scientist Dr Chris Nokes describes how ...

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