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Did you know?
Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
An example of a portion of a manifest used in marine transportation.
An example of continuous variation: biology students organized according to height.
Students pointing at a computer screen