The group consists of 18 main islands, 3 smaller islands, and 107 islets or rocks. The largest of the islands is Isabela which makes up nearly three-quarters of the total land area of the Galapagos islands at 5,827 km² (2,250 mi²).
Some plants are carnivores, gaining nutrients by eating various small insects and spiders. A well known example of a carnivorous plant is the Venus Flytrap.
Alkali metals such as sodium, potassium, rubidium, caesium and francium are extremely reactive elements, just putting them in water can result in an explosion! They are carefully stored in oil to prevent this happening.
While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.
