Dr. King protested [showed strong disagreement with something]. These protests were peaceful.
Photo Credit: Library of Congress, Prints & Photographs Division, U.S. News & World Report Magazine Collection, [LC-DIG-ppmsca-49969]
Germany has many castles. This is Heidelberg Castle. It is … read more
In 1886 Josephine Cochrane invented the dishwasher. She observed that … read more
Balance scales measure weight. Weight is how heavy something is. … read more
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