Colors
Why do beaches have different colors of sand?
They contain different types of minerals.
To group beaches into four categories, what is the basis of classification that you can use?
The color of the sand.
What are the four groups of beaches based on the colors of the sand?
The white-sand, the brown-sand, the black-sand, and the colorful-sand.
Where does the white-sand beach get its color?
The erosion of coral reefs.
What are the color variations of the beaches in the white-sand group?
Their color varies from clear white to yellow.
Name some examples of white-sand beaches!
Tanjung Tinggi in Bangka Belitung and beaches at Gili Islands in Lombok.
Where does the brown-sand beach get its color?
River sand and gravel and rocks around the area.
What are the color variations of the beaches in the brown-sand group?
They range in color from pale cream to golden caramel.
Name some examples of brown-sand beaches!
Kuta Beach and Lahilote Beach.
Where does the black-sand beach get its color?
The cold lava of the volcanoes in the area.
What are the color variations of the beaches in the black-sand group?
They range in color from grey to jet black.
Name some examples of black-sand beaches!
Amankila Beach in Bali and Batu Putih Beach in North Sulawesi.
Name at least two causes of the colorful-sand beach variation!
Pink-sand beaches get their color from a combination of white and red corals or the shells of dead microorganisms. Green-sand beaches get their color from the olivine crystals from volcanoes.
Name at least three variations of the beaches in the colorful-sand group!
Pink, green, orange, red, purple, chocolate-brown, and rainbow.
Name some examples of colorful-sand beaches!
Pink Beach in Komodo Island and Tangsi Beach in Lombok (Pink), Papakolea Beach in Hawaii (green).