chemical reactions

Biogeochemistry is a big word. Biogeochemistry also covers an enormous field of study. It is a systems science – a way of looking at how the...

In this activity, students are introduced to the concept of density. They calculate the volume of various materials to determine and then rank their densities. By...

Dr Katja Ridel’s interest has always been chemistry, and after she finished her PhD in Germany, she took on a position at NIWA in New Zealand....

Once a year, scientists Megan Balks and Jackie Aislabie venture to the coldest place on earth, visiting climate research stations in Antarctica. Since the mid-1990s, Jackie,...

Roberta Farrell has been working in huts since 1997. Not just any old huts – Roberta is one of a multinational team (K021) who has conducted...

Dr Richard McDowell from AgResearch at Invermay is concerned about phosphorus being lost from the soil and causing water pollution via eutrophication. Phosphorus – necessary in...

In this activity, students learn how each stage of the cheesemaking process contributes to the final characteristics of a cheese and how testing procedures are used...

In this activity, students learn how to identify potential safety hazards in a cheesemaking process. They learn how these can be minimised or eliminated to prevent...

In this activity, students investigate a range of cheeses to identify their characteristics and determine how these different characteristics are created. Purpose This activity will enable...

Whey has gone from being a waste product from cheesemaking to a highly valued coproduct. Whey is now widely used in the food industry for its...

Cheese, initially handmade on the farm, is now a major export for New Zealand. So how has the cheese and the manufacturing changed, and why is...

Gouda is a semi-hard Dutch cheese. A Hamilton-based artisan cheese factory makes traditional Gouda using milk directly from the adjoining farm. Discover how each step in...

Cheesemaking is the controlled process of removing water from milk. This process concentrates the milk’s protein, fat and other nutrients and increases its shelf life. Cheesemaking...

Explore the science and the art of cheesemaking and the development of this ancient biotechnology into a modern industry. Cheesemaking concentrates and preserves milk’s nutrients Cheese...

In October 2011, the Greek container ship MV Rena ran aground on Ōtāiti, also known as the Astrolabe Reef, off the coast of Tauranga. The oil...

Learning to manage this chemical reaction What actually is fire? How does it start? How and why does it behave in different ways? How can we...

Fire is generally portrayed as frightening and destructive by the media. Humans have increasingly been able to manage fire by improved detection ability and improved fire...

These are some common misunderstandings about fire. They acknowledge that children have made reasonable sense of the ideas based on their experience and should be validated...

In this activity, students develop critical thinking through ethical discussion of the question: Should chemical fire retardants be added to furniture? By the end of this...

In this activity, students read online articles related to fire in Antarctica and discuss why fire is a big hazard there. By the end of this...

In this activity, students discuss a number of scenarios involving fire risk, become familiar with the school fire safety plan and create a plan for their...

In this activity, students observe the teacher igniting flour when it is in a basic combustion chamber. By the end of this activity, students should be...

In this activity, students observe an empty tea bag that is set alight. The burning causes a column of hot air and gas from combustion to...

In this activity, students investigate different ways of extinguishing fire and how this is related to their knowledge of the fire triangle and fire chemistry. By...