Turtles are reptiles and cold blooded. They come in all shapes and sizes and live in many different environments. They have existed for around 215 million years and they live on average for 50-100 years. The largest turtle is the leatherback sea turtle, it can weigh over 900 kg! (2000 lb). The smallest Turtle in the World is the Speckled Padloper Tortoise.
Tortoises are land animals that dig big burrows with their round stumpy feet. Tortoises are solitary roamers. Some mother tortoises are protective of their nests, but they don’t care for their young after they hatch. Tortoises have an exoskeleton AND an endoskeleton.
Freshwater turtles that live in ponds and lakes, but they do climb out of the water to get sun and warm up. They can hold their breath for five hours underwater. They slow their heart rate to up to nine minutes in between heart beats in order to conserve oxygen.
Sea turtles usually spend most of their lives in water. They have webbed flippers and a streamlined body. The only time sea turtles leave the water is to lay eggs in the sand. Some species of turtle the temperature determines if the egg will develop into a male or female, lower temperatures lead to a male while higher temperatures lead to a female. Some turtles lay eggs in the sand and leave them to hatch on their own. The young turtles make their way to the top of the sand and scramble to the water while trying to avoid predators. They also think that jellyfish are delicious!
Check out High Touch High Tech-Science Made Fun experiment page for awesome hands-on FUN science experiments!
Since 2009, people around the world have celebrated World Oceans Day. The United Nations General Assembly took the concept, first proposed in 1992 and made it official on 5 December 2008. Since then, the event has grown and spread as the realization of the ocean’s importance to humanity has increased.
Did you know:
Oceans cover three quarters of the Earth’s surface, contain 97 percent of the Earth’s water, and represent 99 percent of the living space on the planet by volume. To date only a little over 1 percent of the ocean is protected.
An estimated 50-80 percent of all life on earth is found under the ocean surface and the oceans contain 99 percent of the living space on the planet. Less than 10 percent of that space has been explored by humans.
Tiny marine plants called phytoplankton release half of all oxygen in the atmosphere through photosynthesis.
The oceans account for 96 percent of all the water on the surface of the Earth, the remainder being freshwater, in the form of rivers, lakes and ice.
Over three billion people depend on marine and coastal biodiversity for their livelihoods.
Globally, the market value of marine and coastal resources and industries is estimated at $3 trillion per year.
Oceans contain nearly 200,000 identified species, but actual numbers may lie in the millions.
Oceans serve as the world’s largest source of protein, with more than 2.6 billion people depending on the oceans as their primary source of protein.
As much as 40 percent of the world oceans are heavily affected by human activities, including pollution, depleted fisheries, and loss of coastal habitats.
First off, if you are not sure what sea glass is, it is glass from bottles or other objects that the salt water has physically and chemically weathered over a certain period of time. This weathering gives the glass smooth edges and a “frosted” look to it. Typically it can take 1-2 years for sea glass to acquire its characteristic texture!
Genuine sea glass originates as pieces of glass from broken bottles, broken tableware, or even shipwrecks, which are rolled and tumbled in the ocean for years until all of their edges are rounded off, and the slickness of the glass has been worn.