Where Has All the Helium Gone?
What is helium? Helium is an element that can be found on Earth and in space. On Earth, helium is present in gas form. It is made when other materials break down. In space, helium … Read more
What is helium? Helium is an element that can be found on Earth and in space. On Earth, helium is present in gas form. It is made when other materials break down. In space, helium … Read more
What is kelp? Because kelp looks so much like grass, many people assume it is a plant. However, kelp belongs to the kingdom Protista. This kingdom is made up of organisms with simple cellular organization. … Read more
December 15th is Bill of Rights Day. The Bill of Rights, the first ten Amendments to the United States Constitution, was passed into law on December 15, 1791. An amendment is an addition or a … Read more
Since June 2019, pro-democracy protestors have held weekly demonstrations in Hong Kong like the one shown here. In August, protestors disrupted travel at the Hong Kong International Airport, shutting down the airport for days. The … Read more
December 18th is International Migrant Day. Migration brings challenges and opportunities for migrants and for the countries where they move. Throughout history people have come to the United States to escape such hardships as war, … Read more
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