Which one is the main idea?

Which one is the main idea?

•  

  Plankton is a mass of drifting microscopic plant and animal matter.

     

• The word plankton comes from a Greek word meaning wandering.

•   Plankton is an important food source for ocean creatures.

Which one is the main idea?

• Quicksand may not look different from ordinary sand.

• Quicksand is a light, loose sand mixed with water.

• Unlike regular sand, quicksand cannot support weight.

Which one is the main idea?

• More than 68,000 boxes of cotton candy were sold during that fair.

• This was possible because of the invention of the electric candy machine, patented that year.

• What we know as cotton candy was introduced at the 1904 World’s Fair.

Which one is the main idea?

• He spent his life traveling about the countryside spreading apple seeds.

• He is often pictured with a sack and a long-handled tin pan on his head.

• Johnny Appleseed was a legendary folk hero.

Which one is the main idea?

• Their success generated worldwide interest in polar exploration.

• In 1909 the first explorers reached the North Pole

• The two who achieved this feat were RobertPeary and Matthew Henson.

Which one is the main idea?

• Some “first ladies” hold prominent places in history in their own right.

• The wife of the president of the United States is called the First Lady.

• The term is believed to have been first used in 1863 by Dolly Madison.