The phosphorus cycle

https://www.sciencelearn.org.nz/resources/961-the-phosphorus-cycle
Phosphorus is a chemical element found on Earth in numerous compound forms, such as the ...

Humans and the water cycle

https://www.sciencelearn.org.nz/resources/726-humans-and-the-water-cycle
We are becoming increasingly aware of our impacts on nature, but unfortunately many of the ...

Human impacts on marine environments

https://www.sciencelearn.org.nz/resources/144-human-impacts-on-marine-environments
Throughout human existence we have relied on the oceans – for food, as a waste dump, for ...

Measuring biodegradability

https://www.sciencelearn.org.nz/resources/1543-measuring-biodegradability
In nature, different materials biodegrade at different rates. If you throw your apple core into ...

Human impact on rivers

https://www.sciencelearn.org.nz/resources/440-human-impact-on-rivers
Human beings have an impact on river ecosystems. The relationship living organisms have with ...

What is the Earth system?

https://www.sciencelearn.org.nz/resources/1256-what-is-the-earth-system
There are many interacting systems that make up the Earth, many of which are dynamic. These ...

Ocean temperature

https://www.sciencelearn.org.nz/resources/707-ocean-temperature
The temperature of the ocean determines what form the water takes. Most of the ocean is liquid ...

Fire behaviour

https://www.sciencelearn.org.nz/resources/763-fire-behaviour
Fires behave differently. Some burn slowly and evenly; others are extremely hot, burning ...

Non-renewable energy sources

https://www.sciencelearn.org.nz/resources/1570-non-renewable-energy-sources
Energy comes from many sources, and to describe these sources we use two terms: renewable and ...

Environmental conditions affecting the sea

https://www.sciencelearn.org.nz/resources/141-environmental-conditions-affecting-the-sea
On land, the most important environmental conditions affecting organisms are rainfall and ...

Bioindicators

https://www.sciencelearn.org.nz/resources/1538-bioindicators
A bioindicator is a living organism that gives us an idea of the health of an ecosystem. Some ...

Classifying marine organisms

https://www.sciencelearn.org.nz/resources/140-classifying-marine-organisms
Classification is an important tool used by scientists to show how organisms are related to ...

Behaviour of waves

https://www.sciencelearn.org.nz/resources/121-behaviour-of-waves
All waves behave in certain characteristic ways. They can undergo refraction, reflection ...

Limestone uses

https://www.sciencelearn.org.nz/resources/472-limestone-uses
The calcium carbonate content of limestone rocks has been used from the earliest civilisations ...

Types of volcanoes

https://www.sciencelearn.org.nz/resources/648-types-of-volcanoes
Everyone knows what a volcano looks like – isn’t it a steep-sided cone with wisps of ash coming ...

Fundamentals of waves

https://www.sciencelearn.org.nz/resources/119-fundamentals-of-waves
Seeing, hearing, feeling warmth, surfing, tuning the radio, using a cellphone – these and many ...

Sea stars

https://www.sciencelearn.org.nz/resources/149-sea-stars
When is a fish not really a fish? When it’s a starfish! Starfish is the common name for a group ...

Soil formation

https://www.sciencelearn.org.nz/resources/955-soil-formation
New Zealand has a wide variety of landscapes. A day’s sightseeing journey might include ...

New Zealand’s unique ecology

https://www.sciencelearn.org.nz/resources/1440-new-zealand-s-unique-ecology
New Zealand has a rich and unique range of plants, animals and fungi. The level of distinctive ...

Auckland’s volcanoes

https://www.sciencelearn.org.nz/resources/655-auckland-s-volcanoes
The city of Auckland is built on a volcanic field. There are 50 volcanoes within an area of ...

Build a marine food web

https://www.sciencelearn.org.nz/resources/1525-build-a-marine-food-web
In this activity, students build their own food web using images of organisms from the marine ...

Butterfly defence mechanisms

https://www.sciencelearn.org.nz/resources/507-butterfly-defence-mechanisms
Butterflies are the exhibitionists of the insect world. For many invertebrates, camouflage is ...

Limestone landscapes

https://www.sciencelearn.org.nz/resources/471-limestone-landscapes
Limestone is one of the most common sedimentary rocks found in New Zealand. Eye-catching ...

Antarctic marine ecosystem

https://www.sciencelearn.org.nz/resources/949-antarctic-marine-ecosystem
The Antarctic ecosystem is unique in that the food chains are very short and often based on the ...
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