chemical reactions

Every day, adults take around 20,000 breaths of air. Children, who breathe faster, take even more. The air we breathe plays an important role in both...

Aotearoa New Zealand’s limestone caves are special places. To many Māori, they are tapu. To explorers and thrill seekers, they are a great place for an...

Stalactites and stalagmites are geological formations that occur when water dissolves limestone and other minerals. The mineral-rich water seeps through cracks and into a cave. In...

Insects are vital for our ecosystems, but sometimes there are places where we don’t want them – destroying our gardens, eating our food crops and trees,...

Antibiotic medicines have been an important development for human health, and they’re credited with improving the average human lifespan. While important for human and animal health,...

We use chemicals every day, and they’re all around us. We know different chemicals come in different forms and that they will behave differently in different...

Did you know there are over 30,000 chemicals approved for use across Aotearoa New Zealand? Who approves and regulates the use of these chemicals? How do...

There are over 150,000 substances approved for use in Aotearoa New Zealand that contain an estimated 30,000 chemicals. We use chemicals on a daily basis –...

This Connected article by Ken Benn, looks at a class investigation into why they lost the boat float competition. It starts when student Meihanna asks “How...

Floating and sinking provides opportunities for students to observe how everyday objects behave in water and to investigate the factors that determine whether an object will...

Proteins are one of four main classes of biomolecules in living organisms. The others are lipids, which form our membranes, nucleic acids (DNA and RNA), which...

Using the huge 2019 Nelson wildfire as a starter, this Connected article explores wildfires, focussing on: what wildfires are their causes how they affect us how...

This Connected article starts with the question "What kind of sink can't be used to wash the dishes but can be grown in your garden?" The...

From our bodies to our Earth’s oceans and rocks, acids and bases play an important role in our lives and the environment around us. If you...

Dr Rangi Te Kanawa is a textile conservator at the Museum of New Zealand Te Papa Tongarewa. She uses her knowledge of traditional dyeing practices, science...

Rutherfordium is a synthetic chemical element. Its official chemical symbol is Rf, and its atomic number is 104, which means that a rutherfordium atom has 104...

In this recorded professional learning session, Greta Dromgool and the New Zealand Association of Primary Science Educators (NZAPSE) team will build your confidence with teaching chemistry....

Zinc is a chemical element. Its official symbol is Zn, and its atomic number is 30, which means each zinc atom has 30 protons in its...

Sulfur is a chemical element. Its official symbol is S and its atomic number is 16, which means that each sulfur atom has 16 protons in...

Oxygen is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is O, and its atomic number is...

In this recorded professional learning session, Greta Dromgool will build your knowledge and confidence to teach the particle nature of matter – a key concept in...

Scientists Tim Curran (Lincoln University), Sarah Wyse (University of Auckland) and George Perry (University of Auckland) assessed the flammability of a variety of exotic and native...

Scientists Tim Curran (Lincoln University), Sarah Wyse (University of Auckland) and George Perry (University of Auckland) looked at the impacts of exotic plant species on fires....

At the Science Learning Hub, we know teaching chemistry can feel a bit overwhelming. In this recorded professional learning session, Greta Dromgool takes you step by...