Daily Archives: July 16, 2021

I learned about four inventions this week: the pencil, the stethoscope, the tunneling shield, and paved roads. The pencil is one of the most helpful and simplest inventions.  I learned that it is actually graphite, not lead, in the pencils.  The pencil is made by putting graphite in a wooden case.  It is used byContinue reading “Week 3 Inventions”