Science

Research and experimentation brought forth the greatest advancements in human history! Test your own hypotheses and find the answers to these questions!

Which of these tree leaves is toxic to most animals except the koala?

Which of these animals can sleep around 20 hours a day?

What is the name of the first cervical vertebra?

How many thoracic vertebrae do humans have?

What gas do red blood cells carry around the body?

Which disease is caused by a lack of vitamin D?

To which system does the esophagus belong?

What does an epidemiologist study?

Iron is important in the diet because it is part of what?