Central Idea

What is the central idea of this passage?

• Coral reefs are colorful and full of life.
  

• Climate change threatens coral reefs and the ecosystems that depend on them.

• Scientists enjoy studying marine life.

• Coral reefs are found all over the world.

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RI.6.2

CCSS.RI.8.2

CCSS.RL.8.2

Climate Change and Coral Reefs

Coral reefs are often called the “rainforests of the sea” because they support so much life. However, rising ocean temperatures caused by climate change are leading to coral bleaching, a process where corals lose their color and vital algae. As the reefs die, many species that depend on them for food and shelter are also at risk. Some scientists are studying heat-resistant corals in hopes of helping reefs survive future warming.

How does the author develop the central idea?

• By describing the beauty of reefs
  

• By comparing reefs to forests

• By giving personal opinions

• By explaining a cause (warming oceans) and its effects (coral death)

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RL.6.2

CCSS.RI.8.2

CCSS.RL.8.2

Climate Change and Coral Reefs

Coral reefs are often called the “rainforests of the sea” because they support so much life. However, rising ocean temperatures caused by climate change are leading to coral bleaching, a process where corals lose their color and vital algae. As the reefs die, many species that depend on them for food and shelter are also at risk. Some scientists are studying heat-resistant corals in hopes of helping reefs survive future warming.

What is one detail that supports the central idea?

• Heat-resistant corals may help reefs survive.

• Reefs are sometimes called “rainforests of the sea.”

• Coral reefs attract tourists.

• Coral reefs are colorful.

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RI.6.2

CCSS.RL.7.1

CCSS.RL.6.1

What is the central idea?

• Most cities ignore pollution.

• Renewable energy is too expensive.

• Pollution is mostly caused by cars.

• Air pollution harms people’s health and requires cleaner solutions.

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RI.6.2

CCSS.RI.8.2

CCSS.RL.8.2

Which detail helps develop the central idea? ​ (a)  

• Cities are using cleaner transportation.
• Some people have asthma.
• Pollution can make the sky hazy.
• Factories are large buildings.

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RL.7.1

CCSS.RL.6.1

CCSS.RL.8.1

How does the author organize information? ​ (a)   ​

• Describing problem and solutions
• By describing a person’s experience
• By comparing different cities
• By listing steps to clean the air

Tags

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

What is the central idea of the passage? ​

• Curiosity and discovery drive space exploration, benefiting humanity.
  

• Space travel is dangerous and can lead to meteor showers.

• Rovers on Mars are the most important missions.
• Space programs waste money.

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RL.8.2

Which sentence best supports the central idea? ​ (a)  

• “Space exploration expands our understanding...”
• “Humans have always been curious about..."
• “Rovers explore the surface of Mars.”
• “The Moon is Earth’s closest neighbor.”

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RL.6.2

CCSS.RL.7.1

CCSS.RL.8.1

How does the author develop the central idea? ​ (a)  

• Examples of space achievements showing curiosity
• By describing events in chronological order
• By comparing scientists
• By describing planets in detail

Tags

CCSS.RI.7.2

CCSS.RL.7.2

CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RL.8.2

In this benchmark, we are (a)   two or​ (b)   ​ (c)   ideas.

• comparing
• more
• central
• contrasting
• developing
• analyzing

Tags

CCSS.RL.4.3

CCSS.RL.5.3

CCSS.RL.6.3

CCSS.RL.7.3

CCSS.RL.8.3