Main Ideas: Social Studies and Science

Front

Key thought of the passage: Citizens have both rights and responsibilities.

Back

Citizens have both rights and responsibilities.

Front

Sumerians' contributions to civilization include irrigation, wheeled vehicles, writing, and record keeping.

Back

The Sumerians created many of the foundations of civilized life.

Front

In the U.S., every person and institution is subject to the rule of law. Congress (legislative) makes laws, the president (executive) enforces them, and the courts (judicial) interpret them. This distribution of responsibilities is known as the separation of powers.

Back

The separation of powers helps protect the freedom of Americans.

Front

Charles Lindbergh lands at Le Bourget Field in Paris, completing the first transatlantic flight solo in 3 hours and 30 minutes, covering 3,610 miles under challenging conditions.

Back

Lindbergh Completes First Transatlantic Flight.

Front

In 1859, George Griffith discovered gold in Colorado, calling his claim George's Town. Despite the initial gold rush, no more gold was found, but silver was discovered nearby, leading Georgetown to become the world's top silver producer.

Back

Though founded on gold, Georgetown became the greatest silver producer in the world.

Front

Main idea of the passage:

Back

Certain plants can purify the home of many harmful chemicals.

Front

Harmful chemicals can contribute to a syndrome called Multiple Chemical Sensitivity.

Back

Multiple Chemical Sensitivity.

Front

Ferns and palms are ancient plants known for their long lifespan and ability to purify the air. What is their notable trait?

Back

live long.

Front

Title for the passage about plants removing harmful chemicals from air?

Back

Common Houseplants May Purify Your Home

Front

Pyramids of Egypt vs. Mesoamerica: distinct differences in construction, design, and function. Egyptian pyramids: tombs for pharaohs, built with cut stone. Mesoamerican pyramids: public temples, built with irregular stones.

Back

Pyramids in Egypt and Mesoamerica have distinct differences.