Thursday, June 27, 2013
What happens during a heart attack?
In a heart attack your heart loses oxygen, and eventually causes necrosis of the best cardiac tissues. This tissue death can result in heart failure and deadly arrhythmia. When the plaque in your heart hardens it explodes and platelets come and prevent further release of the plaque that has exploded. However this clotting can block the artery completely and stop the blood flow to a part of the heart. When the blood stops, flow stops, and so does the oxygen to that part of the heart. Because of the lack of oxygen to keep the muscle going, muscle cells die in the heart.
By: Cameron, Aiden, Skye,, and Owen.
Clocks come in all shapes and sizes. Clocks can be any colour and can be made of almost anything. All clocks are made with the same components like tools, wood, and more.
By: Caden and Andrew.W
Why do we close our eyes when we sleep?
It turns out that most humans need their eyes closed to get a good nights sleep. Closing your eyes blocks out visual stimulation. When your eyes are closed, you aren’t distracted by visual input. Closing your eyes protects them from getting bugs and other foreign objects that could be damaging. If you try falling asleep with the light on, you would fall asleep a lot quicker because the light makes your eyes tired so your body’s natural instinct would be to close them.
By: Kaiya, Andrew.C, Dora, and Alisha
Macaws can live up to 65 years old. They are long tailed birds. Macaws are just a different type of parrot. There are 17 species of Macaws. Their habitat is the rainforest but some species prefer woodland or Savannah like places. Macaws are the biggest parrots in the world. The body of the scarlet Macaw from beak to tail is 33 inches. Macaws strong beaks are used to crack hard nuts in their habitat. Macaws like to feast on a variety of foods to keep their energy up like fruits, nuts, leaves, stems, and flowers. Snakes, Monkeys, and the Toco Toucans are the Macaws most common predators. The 17 species of Macaws are:
Great Green Macaw
Blue and Yellow Macaw
Green Winged Macaw
Blue Throated Macaw
Red Fronted Macaw
Chestnut Fronted Macaw
Red Bellied Macaw
Blue Headed Macaw
Blue Winged Macaw
Golden Collared Macaw
Red Shouldered Macaw
There would be 19 species of Macaws but the Cuban Red Macaw and the Saint Croix Macaw are extinct.
By: Abigail, Madison, Breanna, and Katelynne.
A volcano is an opening or rupture in a planet's surface or crust. A volcano allows hot magma , volcanic ashes, and steam to escape of the magma chamber. Below the surface they are found in a subduction. The most common perception of a volcano is a conical.
By: Adrian.D, Nick, Lee,and Sophia