101 Things You need to Know
What s the difference between heat and
temperature? Who was our twenty-sixth
president? How do you figure out the
circumference of a circle? Who made the
first national flag? What is a bar graph?
Where do you place the colon in a business
letter? Why do earthquakes happen?
101 Things You Need to Know. The Answer
Book fi~r School Sur, gival is a quick and
easy-to-explore reference packed with
answers to your questionsE