How elements are formed

https://www.sciencelearn.org.nz/resources/1727-how-elements-are-formed
Our world is made of elements and combinations of elements called compounds. An element is a ...

Development of the periodic table

https://www.sciencelearn.org.nz/resources/1804-development-of-the-periodic-table
Although elements such as gold, silver, tin, copper, lead and mercury have been known since ...

The essential elements

https://www.sciencelearn.org.nz/resources/1728-the-essential-elements
As our knowledge of the chemistry of living systems (biochemistry) increases, we learn more ...

Large intestine function

https://www.sciencelearn.org.nz/resources/1832-large-intestine-function
Recent research has revealed that the large intestine and its resident bacterial population ...

Digestion – breaking the large into the small

https://www.sciencelearn.org.nz/resources/1830-digestion-breaking-the-large-into-the-small
Digestion of food involves both physical and chemical processes. Through digestion, large food ...

Carbonate chemistry

https://www.sciencelearn.org.nz/resources/469-carbonate-chemistry
Calcium carbonate is the principal mineral component of limestone. Its chemical and physical ...

The human digestive system

https://www.sciencelearn.org.nz/resources/1829-the-human-digestive-system
The human digestive system consists of a long muscular tube and several accessory organs such ...

Using isotopes as tracers

https://www.sciencelearn.org.nz/resources/1801-using-isotopes-as-tracers
Radioactive isotopes have many useful applications in a wide variety of situations, for ...

Rate of digestion

https://www.sciencelearn.org.nz/resources/1834-rate-of-digestion
Digestion of food involves chemical reactions that break up large food molecules into their ...

Hormonal control of digestion

https://www.sciencelearn.org.nz/resources/1836-hormonal-control-of-digestion
It has now been well established that gut hormones have a key role in controlling food intake ...

Digestion chemistry – introduction

https://www.sciencelearn.org.nz/resources/1826-digestion-chemistry-introduction
Food plays an extremely important part in the lives of all humans. After ingestion, the food is ...

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 ...

Metals, alloys and metal compounds

https://www.sciencelearn.org.nz/resources/1733-metals-alloys-and-metal-compounds
From titanium implants to new superconducting alloys to useful metal compounds, we are ...

Unlocking the energy in foods

https://www.sciencelearn.org.nz/resources/1833-unlocking-the-energy-in-foods
The foods we eat supply the energy needed by the body to drive its complex chemical, mechanical ...

Big Bang theory

https://www.sciencelearn.org.nz/resources/1814-big-bang-theory
In this activity, students gain understanding of the role the Large Hadron Collider is playing ...

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 ...

Limestone origins

https://www.sciencelearn.org.nz/resources/466-limestone-origins
Limestone is a very common sedimentary rock consisting of more than 50% calcium carbonate ...

Periodic table of elements

https://www.sciencelearn.org.nz/resources/1726-periodic-table-of-elements
The periodic table of elements puts all the known elements into groups with similar properties ...

Titanium – metal of the future

https://www.sciencelearn.org.nz/resources/1803-titanium-metal-of-the-future
Titanium is being increasingly used in our modern society. It is light, strong and ...

Lime – a time-tested chemical

https://www.sciencelearn.org.nz/resources/474-lime-a-time-tested-chemical
Pure lime, or quicklime, is calcium oxide. Its ease of manufacture and chemical properties make ...

Carbonates in and on the ear

https://www.sciencelearn.org.nz/resources/476-carbonates-in-and-on-the-ear
Calcium carbonate crystals present in the inner ear play a key role in our sense of balance and ...

Limestone as an oil reservoir

https://www.sciencelearn.org.nz/resources/477-limestone-as-an-oil-reservoir
The world’s largest oil fields are contained in limestones. By contrast, New Zealand’s oil ...

Radioisotopes

https://www.sciencelearn.org.nz/resources/1730-radioisotopes
Closer examination of the atoms that make up a given element has shown that, although they have ...

New Zealand limestone origins

https://www.sciencelearn.org.nz/resources/467-new-zealand-limestone-origins
Most of New Zealand’s limestone deposits were formed in the Oligocene epoch some 23–34 million ...
Load more