Characteristics of living things

https://www.sciencelearn.org.nz/resources/14-characteristics-of-living-things
When you look at the world around you, how do you categorise or group what you see? In science ...

Marine food webs

https://www.sciencelearn.org.nz/resources/143-marine-food-webs
Feeding relationships are often shown as simple food chains – in reality, these relationships ...

Ocean salinity

https://www.sciencelearn.org.nz/resources/686-ocean-salinity
There are many chemicals in seawater that make it salty. Most of them get there from rivers ...

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 ...

Adaptations of marine organisms

https://www.sciencelearn.org.nz/resources/142-adaptations-of-marine-organisms
Adaptation is an evolutionary process whereby an organism becomes increasingly well suited to ...

Earthworm adaptations

https://www.sciencelearn.org.nz/resources/17-earthworm-adaptations
Adaptation is an evolutionary process whereby an organism becomes increasingly well suited to ...

Earthworms’ role in the ecosystem

https://www.sciencelearn.org.nz/resources/9-earthworms-role-in-the-ecosystem
Charles Darwin is well known for his work on natural selection. He published widely on topics ...

Principles of flight

https://www.sciencelearn.org.nz/resources/299-principles-of-flight
For thousands of years, people have wanted to fly. Our legends and fairy tales are full of ...

Wing aspect ratio

https://www.sciencelearn.org.nz/resources/302-wing-aspect-ratio
Wing shapes and sizes of both birds and planes determine how they might perform or what they ...

Ocean density

https://www.sciencelearn.org.nz/resources/687-ocean-density
The density of seawater plays a vital role in causing ocean currents and circulating heat ...

The role of observation in science

https://www.sciencelearn.org.nz/resources/8-the-role-of-observation-in-science
Observation is something we often do instinctively. Observation helps us decide whether it’s ...

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 ...

Classifying and identifying ferns

https://www.sciencelearn.org.nz/resources/1104-classifying-and-identifying-ferns
Scientists currently consider that New Zealand has approximately 230 species of fern in about ...

Native bird adaptations

https://www.sciencelearn.org.nz/resources/1162-native-bird-adaptations
New Zealand separated from Gondwana around 65 million years ago. Due to the geographical ...

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 ...

What is a fern?

https://www.sciencelearn.org.nz/resources/1103-what-is-a-fern
There are ferns in most New Zealanders’ backyards and local environments. Ferns are green ...

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 ...

Wing loading

https://www.sciencelearn.org.nz/resources/301-wing-loading
You can tell a great deal about how a bird lives or what a plane has been designed for just ...

Insulation

https://www.sciencelearn.org.nz/resources/1006-insulation
In Antarctica, winter temperatures can vary from -70ºC to -15ºC – it is one of the coldest ...

Adapting to marine habitats

https://www.sciencelearn.org.nz/resources/1126-adapting-to-marine-habitats
Being able to adapt is a matter of life or death. In a perfect world, organisms would not need ...

Birds’ roles in ecosystems

https://www.sciencelearn.org.nz/resources/1163-birds-roles-in-ecosystems
An ecosystem consists of all of the flora and fauna living within an area and the interactions ...

Water density

https://www.sciencelearn.org.nz/resources/1009-water-density
Water density changes with temperature and salinity. Density is measured as mass (g) per unit ...

Monarch butterflies

https://www.sciencelearn.org.nz/resources/511-monarch-butterflies
There is a touch of irony that, in a country famous for its unique wildlife, New Zealand’s most ...

Ecosystems

https://www.sciencelearn.org.nz/resources/993-ecosystems
What is an ecosystem? An ecosystem is made up of animals, plants and bacteria as well as the ...
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