Hard cooked or raw, can you tell? This site has egg recipes and activities, scientific processes of eggs, and more from Exploratorium.com.

Hard cooked or raw, can you tell? This site has egg recipes and activities, scientific processes of eggs, and more from Exploratorium.com.

Hard cooked or raw, can you tell? This site has egg recipes and activities, scientific processes of eggs, and more from Exploratorium.com.

Hard cooked or raw, can you tell? This site has egg recipes and activities, scientific processes of eggs, and more from Exploratorium.com.

A diagram which shows how the process of atmospheric and ocean circulation works. It features such important terms as precipitation, evaporation, sublimation, snow, accumulation, wind redistribution, melt, runoff, heat, ice flow and...

A photo featuring four separate pictures of a mortar & pestle. Each stage of the process to grind down an object is shown. The object is whole at first but by the fourth picture it has been ground down to dust.

Dark spots seem to appear at the intersections in this example of the Hermann grid illusion. This effect is often explained by a neural process called lateral inhibition.

This picture helps show global vegetation levels. Looking at the image it is clear to see that some areas are rich in vegetation while others are not. Vegetation levels are vital for humans living around the world, satellites monitor the...

This diagram helps explain the processes involved when a volcano erupts, injecting aerosols and gases high into the air and up in to the stratosphere. The chemicals inside the ash can create acid rain and lead to ozone destruction.

This rotation symbol can be used to mean a number of different things. It could represent recycling, a round about traffic sign or the circulation process of water. It is blue and features three large white arrows.

The Leaning Tower of Pisa in Italy is a world famous free standing bell tower that is visited by a large number of tourists every year. It was originally designed to stand up straight but began leaning over time. Work began on the...

This unbelievable photo shows an imposing rolling thunder cloud making its way over a city in the Netherlands. It dumps large amounts of water in the process and unleashes spectacular displays of thunder and lightning.

Get an overview of the process of sleeping. Why do we do it? What are the stages of sleep? How much sleep is required? All of these questions are answered in this article.

The Swiss Tectonic Arena Sardona in the north-eastern part of the country covers a mountainous area of 32,850 ha which features seven peaks that rise above 3,000 m. The area displays an exceptional example of mountain building through...