Main Idea and Details

“How were the great Egyptian pyramids built?”

“While some details remain a mystery, scientists think they know.”

“Scientists estimate it took at least 20,000 workers over 23 years to build a pyramid.”

“It is believed that thousands of slaves cut up large blocks of stone and slowly moved the blocks up the

pyramid on ramps.”

“While some details remain a mystery, scientists think they know.”

“The pyramid would be slowly built, one block at a time.”

“Scientists estimate it took at least 20,000 workers over 23 years to build a pyramid.”

“It is believed that thousands of slaves cut up large blocks of stone and slowly moved the blocks up the

pyramid on ramps.”

measurement tool

Egyptian slave

Egyptian king

mummy

“How does 12 million tons of plastic trash enter our oceans...? In short,...through careless littering.”

“...marine mammals can get tangled up in plastic trash, such as fishing nets...”

“In some cases, ocean litter is made up of fishing gear lost at sea...”

“...people who flush trash down the toilet when they are not supposed to...”

“Plastic trash stays in the ocean forever... and harms sea life.”

Lost fishing nets are everywhere in the ocean.

Plastic trash is a problem in our oceans.

Plastic garbage in streams and rivers flow into the sea.

Sea life suffers from all the plastic waste in the ocean.

“There are also people who...leave their trash behind on the beach.”

“Plastic trash left on the ground often blows into streams and rivers...”

“How does 12 million tons of plastic trash enter our oceans every year?”

“In some cases, ocean litter is made...from illegal dumping of trash by large ships.”

“...a plastic bag floating in the ocean looks...like a delicious jellyfish meal.”

“Eating plastic trash... can cause sea life to...starve...”

“Plastic trash stays in the ocean forever...and harms sea life.”

“Fish, seabirds, sea turtles, and marine mammals can get tangled up in plastic trash,...”