Na m e : ___ Date: _
Directions: Read the paragraph. Underline the topic sentence and write it in the top box. Find two
supporting details. Write them in the next two boxes. Each detail has two minor
supporting details. Write them in the last four boxes.
You have to support your statements. A good way to do
this is skim the selection again to find the topic sentence
and the supporting details. Then you’ll sparkle!
Diamonds
A diamond is the hardest substance known and also one of the most
precious. On a hardness scale of 1–10, a diamond is the only mineral that
rates a 10. Because they are so hard, diamonds are used as cutting tools.
Diamonds themselves are cut using diamond dust.
When it comes to gems, diamonds are considered the most valuable. The
value of a diamond can vary depending on its cut, clarity, color, and carat
weight. The largest of all known diamonds is the Cullinan. When the stone
was cut, 105 individual gems were made, for a total weight of 1,063 carats.