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 ...

Heat energy

https://www.sciencelearn.org.nz/resources/750-heat-energy
Most of us use the word ‘heat’ to mean something that feels warm, but science defines heat as ...

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 ...

What is fire?

https://www.sciencelearn.org.nz/resources/747-what-is-fire
Fire is the visible effect of the process of combustion – a special type of chemical reaction ...

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 ...

What is smoke?

https://www.sciencelearn.org.nz/resources/748-what-is-smoke
What is smoke and why do some fires seem to have more smoke than others? Smoke is a collection ...

Fire behaviour

https://www.sciencelearn.org.nz/resources/763-fire-behaviour
Fires behave differently. Some burn slowly and evenly; others are extremely hot, burning ...

Non-renewable energy sources

https://www.sciencelearn.org.nz/resources/1570-non-renewable-energy-sources
Energy comes from many sources, and to describe these sources we use two terms: renewable and ...

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 ...

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 ...

Light and telescopes

https://www.sciencelearn.org.nz/resources/1625-light-and-telescopes
The universe is full of amazing things, but we need help to see most of them. There are many ...

Water and ice

https://www.sciencelearn.org.nz/resources/1008-water-and-ice
Looking down at the Earth from space, you can get an idea of just how much water there is. In ...

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 ...

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 ...

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 ...

Soil formation

https://www.sciencelearn.org.nz/resources/955-soil-formation
New Zealand has a wide variety of landscapes. A day’s sightseeing journey might include ...

Distances in space

https://www.sciencelearn.org.nz/resources/1624-distances-in-space
Distances in space are really, really big. The Voyager 1 spacecraft is heading out of our Solar ...

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 ...

Lightning explained

https://www.sciencelearn.org.nz/resources/239-lightning-explained
Lightning is a large-scale natural spark discharge that occurs within the atmosphere or between ...

Renewable energy sources

https://www.sciencelearn.org.nz/resources/1571-renewable-energy-sources
Renewable energy is fuel that comes from a source that can be replenished in a short amount of ...

Plasmas explained

https://www.sciencelearn.org.nz/resources/238-plasmas-explained
We happily live in the Earth’s gaseous lower atmosphere composed of a mixture of gases – ...

Why is Antarctica so cold?

https://www.sciencelearn.org.nz/resources/1038-why-is-antarctica-so-cold
During winter, the average temperature in the South Pole is -60°C, but in the North Pole it is ...

Linking ideas, activities and lessons

https://www.sciencelearn.org.nz/resources/1825-linking-ideas-activities-and-lessons
In the primary classroom, even though teachers and students generally spend the day together ...
Load more