©2017 McGraw-Hill Education. All Rights Reserved.
There are 8.7 million species of animals in the world! A species is a group of similar living things. A species is considered endangered if there are so few left alive that they might go … Read more
Ellis Island is located at the mouth of the Hudson River between New York and New Jersey. It opened as an immigration station on January 1, 1892. Millions of immigrants came to the United States … Read more
President-elect Joe Biden made history when he chose Kamala Harris to be his Vice President. She is the first woman and first person of color to be elected in that position. Joe Biden promised to … Read more
Groundwater is exactly what it sounds like: water that comes from the ground. Groundwater lies beneath Earth’s surface, filling the spaces between soil, sand, and rock. This is a geological formation known as an aquifer. … Read more
On January 6, 2021, in Washington, D.C., a hostile group of Trump supporters attacked the United States Capitol building as Congress was in session. They wanted to stop Congress from certifying [formally recognizing] the electoral … Read more
In December, President-elect Joe Biden went on television to get a vaccine for COVID-19. A vaccine is medicine that prevents people from getting a disease. President-elect Biden wanted to assure Americans that the vaccine is … Read more
©2017 McGraw-Hill Education. All Rights Reserved.