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 ...

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 ...

Classification system

https://www.sciencelearn.org.nz/resources/1438-classification-system
In the 18th century, Carl Linnaeus published a system for classifying living things, which has ...

The nitrogen cycle

https://www.sciencelearn.org.nz/resources/960-the-nitrogen-cycle
Nitrogen is the most abundant element in our planet’s atmosphere. Approximately 78% of the ...

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 ...

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 ...

Pollination and fertilisation

https://www.sciencelearn.org.nz/resources/77-pollination-and-fertilisation
Sexual reproduction is a way of making a new individual by joining two special sex cells ...

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 ...

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 ...

Earthworm adaptations

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

Flowering plant life cycles

https://www.sciencelearn.org.nz/resources/82-flowering-plant-life-cycles
The flowers and fruit of flowering plants come and go as part of their life cycle. Some ...

Attracting pollinators

https://www.sciencelearn.org.nz/resources/80-attracting-pollinators
Flowering plants need to get pollen from one flower to another, either within a plant for ...

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 ...

River ecosystems

https://www.sciencelearn.org.nz/resources/439-river-ecosystems
The ecology of the river refers to the relationships that living organisms have with each other ...

Melting and freezing

https://www.sciencelearn.org.nz/resources/608-melting-and-freezing
Water can exist as a solid (ice), liquid (water) or gas (vapour or gas). Adding heat can cause ...

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 ...

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 ...

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 ...

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 ...
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