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STANDARDS

CCSS: 3.MD.B.3, 4.MD.A.2

TEKS: 3.8A, 3.8B, 4.9A, 4.9B, 5.9C

Help for Hawaii

This state has the most endangered species in the country

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Hawaii is famous for its beautiful beaches, lush forests, and active volcanoes. The cluster of islands is surrounded by the Pacific Ocean.

Hawaii joined the United States in August 1959. This year, the state turned 60. Almost 10 million people visit annually.

Hawaii is famous for its beautiful beaches. It’s also known for green forests and active volcanoes. Hawaii is a group of islands. It’s in the middle of the Pacific Ocean.

Hawaii joined the United States in August 1959. The state turned 60 this year. Almost 10 million people visit every year. 

Many plant and animal species live only in Hawaii. But over time, humans have changed the ecosystem. Farmers brought goats and pigs to the islands for food. But invasive species like these eat the native wildlife. More than 500 Hawaiian plants and animals are at risk of dying out.

Scientists are trying to help. Drones take videos of plants on steep mountains. Biologists climb cliffs to find rare plants. That’s because every species matters in an ecosystem. When one species is lost, it can throw the whole system out of balance.

Lisa Crampton is a bird scientist on the island of Kauai. Her team raises chicks and reintroduces them into the wild. “We work to recover populations,” she says.

Many plant and animal species live only in Hawaii. But over time, humans have changed the ecosystem. Farmers brought goats and pigs to the islands. They brought them for food. But these are invasive species. They eat the native wildlife. More than 500 Hawaiian plants and animals are at risk of dying out. 

Scientists are trying to help. Drones take videos of the plants. They look at plants on steep mountains. Biologists climb cliffs. They look for rare plants. Every species matters in an ecosystem. When one species is lost, it can make a big impact. It can throw the whole system off balance.

Lisa Crampton is a bird scientist. She works on the island of Kauai. Her team raises chicks. They reintroduce them into the wild. “We work to recover populations,” she says.

Jon Letman-National Tropical Botanical Garden

More than 10,000 species live on Hawaii and nowhere else on Earth.

Which island has the greatest number of endangered plant species?

Which island has the greatest number of endangered plant species?

A. Molokai

A. Molokai

B. Hawaii

B. Hawaii

C. Oahu

C. Oahu

D. Kauai

D. Kauai

Which expression shows how many endangered plant species are on Molokai?

Which expression shows how many endangered plant species are on Molokai?

A. 10 + 10 + 10

A. 10 + 10 + 10

B. 10 + 10 + 10 + 10

B. 10 + 10 + 10 + 10

C. 10 + 10 + 10 + 10 + 10

C. 10 + 10 + 10 + 10 + 10

D. 10 + 10 + 10 + 10 + 10 + 10

D. 10 + 10 + 10 + 10 + 10 + 10

What is another operation you could use to find the answer to question 2?

What is another operation you could use to find the answer to question 2?

A. multiplication

A. multiplication

B. addition

B. addition

C. subtraction

C. subtraction

D. division

D. division

Which two islands have the same number of endangered plant species?

Which two islands have the same number of endangered plant species?

A. Kauai and Lanai

A. Kauai and Lanai

B. Lanai and Molokai

B. Lanai and Molokai

C. Maui and Oahu

C. Maui and Oahu

D. Hawaii and Kauai

D. Hawaii and Kauai


James Cook was an English sea captain who visited Hawaii in 1778. How many bird species were there when Cook came to Hawaii?

James Cook was an English sea captain who visited Hawaii in 1778. How many bird species were there when Cook came to Hawaii?

A. 58

A. 58

B. 61

B. 61


C. 65

C. 65

D. 70

D. 70

This year, there are 31 endangered bird species on Hawaii. About how many native bird species are not endangered? Use the bar graph to write and solve an equation.

This year, there are 31 endangered bird species on Hawaii. About how many native bird species are not endangered? Use the bar graph to write and solve an equation.

What do you notice about the bird populations as time went on? Explain.

What do you notice about the bird populations as time went on? Explain.

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