Podcast
Questions and Answers
What causes the rainbow-like appearance of the Eucalyptus deglupta's bark?
What causes the rainbow-like appearance of the Eucalyptus deglupta's bark?
- The tree secretes a multi-colored sap that stains the bark as it dries.
- The bark is dyed using various plant-based pigments by indigenous communities.
- The bark reflects and refracts light differently at various angles, creating a rainbow effect.
- The bark sheds in layers, revealing different colored inner layers as they age and are exposed to air. (correct)
Which of the following statements about the Eucalyptus deglupta is true?
Which of the following statements about the Eucalyptus deglupta is true?
- It is the only eucalyptus tree that can be found in all continents.
- It is the only eucalyptus tree indigenous to the southern hemisphere.
- It is the tallest species of eucalyptus tree.
- It is the only eucalyptus tree that grows in the rainforest. (correct)
In which regions is the Eucalyptus deglupta primarily found in its native environment?
In which regions is the Eucalyptus deglupta primarily found in its native environment?
- Canada, the United States, and Greenland
- Brazil, Costa Rica, and Mexico
- Australia, New Zealand, and South Africa
- The Philippines, New Guinea, and Indonesia (correct)
What is the maximum height that the Eucalyptus deglupta can grow in its native environment?
What is the maximum height that the Eucalyptus deglupta can grow in its native environment?
In which regions of the United States can the Eucalyptus deglupta grow?
In which regions of the United States can the Eucalyptus deglupta grow?
What is the maximum height that the Eucalyptus deglupta can grow in the continental United States?
What is the maximum height that the Eucalyptus deglupta can grow in the continental United States?
What is the primary factor that determines the shape of a snowflake?
What is the primary factor that determines the shape of a snowflake?
What is the typical range of temperatures in which water vapor crystallizes around bits of dust to form ice crystals?
What is the typical range of temperatures in which water vapor crystallizes around bits of dust to form ice crystals?
Which of the following is NOT one of the seven basic shapes of snowflakes mentioned in the text?
Which of the following is NOT one of the seven basic shapes of snowflakes mentioned in the text?
What is the maximum number of ice crystals that can make up a single snowflake?
What is the maximum number of ice crystals that can make up a single snowflake?
What is the primary process by which snow is formed high in the clouds?
What is the primary process by which snow is formed high in the clouds?
Where is snow found year-round according to the text?
Where is snow found year-round according to the text?
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Study Notes
Snow Formation
- Tiny crystals of ice that fall to Earth are called snow.
- Snowfall is made up of both single ice crystals and clumps of ice crystals, called snowflakes.
- Snow is formed high in the clouds from water vapor, which freezes to form ice crystals at temperatures between −40 °F (−40 °C) and 32 °F (0 °C).
- Ice crystals can stay up in the clouds or fall to the ground, clumping together to form snowflakes.
Snowflake Characteristics
- One snowflake can contain as many as 100 ice crystals.
- The way that ice crystals join together gives every snowflake a unique design.
- Most snowflakes have six points or six sides and form seven basic shapes: stars, needles, dendrites, plates, columns, columns capped with plates, and irregular shapes.
Snowfall and Climate
- Snow falls in many places that get cold weather, mainly during winter.
- At the North and South poles, snow covers Earth year-round.
- Near the Equator, snow falls only in the highest mountain regions.
- Snow greatly affects climates and living things.
Rainbow Eucalyptus
- Rainbow eucalyptus (Eucalyptus deglupta) sheds its bark, revealing a neon green inner layer that ages into different colors—bright reds, oranges, blues, pinks, and purples, over time.
- This process creates a spectacular visual, resembling a multi-colored crayon scratch drawing.
- Rainbow eucalyptus is the only eucalyptus tree indigenous to the northern hemisphere, found mainly in the Philippines, New Guinea, and Indonesia.
- It thrives in tropical forests that get a lot of rain and can grow up to 250 feet (76 m) tall in its native environment.
- In the US, rainbow eucalyptus grows in frost-free climates found in Hawaii, California, Texas, and Florida, but only grows to heights of 100 to 125 feet (30-38 m).
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