Lightning is a large-scale natural spark discharge that occurs within the atmosphere or between the atmosphere and the Earth’s surface. On discharge, a highly electrically conductive plasma ...
The high temperatures (900°C) and extremely high pressures that occur in the mantle layer of the Earth are enough to melt rock. The high pressure changes the rock into a viscous semisolid called ...
We know that cold, damp homes are not good for our health, as explained in the article Damp homes and health risks. Ventilation is often recommended as a way to prevent dampness from ...
Plastic is an amazing material. It has changed the way we store and carry food, drinks and other items. Plastic is lightweight and resists breaking when dropped. Older people may remember when ...
Your body has a two-line defence system against pathogens (germs) that make you sick. Pathogens include bacteria, viruses, toxins, parasites and fungi. The first line of defence (or outside ...
Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for ...
Light is made up of wavelengths of light, and each wavelength is a particular colour. The colour we see is a result of which wavelengths are reflected back to our eyes. Visible light Visible ...
Soil – it’s much more than dirt. Soil keeps us alive. Without soil, we would be hungry, thirsty, naked, homeless and breathless. Soils differ from location to location and are a range of colours ...
The Science Learning Hub has lots of resources for primary teachers related to the night sky in the Planet Earth and Beyond strand of the New Zealand Curriculum. The night sky is fascinating to ...
Shulman’s (1987) notion of pedagogical content knowledge (PCK) is concerned with how to teach specific ideas and skills to particular students. As well as knowing what ideas to teach their ...
Join LEARNZ for What`s the plan, Stan? - getting ready for an emergency. What will you do in an emergency? You probably already know to "Drop, Cover and Hold" during an earthquake. But as a ...
Join LEARNZ for their annual trek to Antarctica. At the end of 2018 go to a place that has fascinated explorers and scientists for over 100 years; Antarctica. Unlike early adventurers you won't ...
Fresh water is essential to life. On this trip you will see how quality freshwater drives a significant part of the local economy around Lake Taupō. Go whitewater rafting and fly-fishing with us ...
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