1274 questions and answers in this section
Explain why hot water can dissolve certain minerals more quickly than cold water.

Explain why hot water can dissolve certain minerals more quickly than cold water.

When water heats up, the molecules start to jiggle more. Imagine a crowd: the hotter it gets, the more everyone moves and bumps into each...

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Explain why some trees have bark that appears to peel?

Explain why some trees have bark that appears to "peel"?

The bark is somewhat like the skin of the tree. It protects the tree from external threats such as insects, fungi, and mechanical injuries. Additionally, it helps...

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Explain why do pebbles become round at the bottom of rivers?

Explain why do pebbles become round at the bottom of rivers?

Stones gradually become round due to the action of erosion, a natural phenomenon that wears down and transforms rocks over time. Essentially, several forces come...

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Explain why do birds migrate at such high altitudes?

Explain why do birds migrate at such high altitudes?

Migratory birds generally seek heights where atmospheric conditions become favorable for them. At several hundred or even thousands of meters above the ground, they take...

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Explain why do brick walls tend to crumble over time?

Explain why do brick walls tend to crumble over time?

Here is the translation of the text from French to English: Bricks are elements that have been used for centuries in construction. They are generally...

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Explain why do catfish have whiskers?

Explain why do catfish have whiskers?

These funny whiskers, also known as barbels, are actually highly specialized sensory organs in catfish. They are equipped with thousands of small nerve cells that...

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Explain why do the bacteria in our intestines influence our mood?

Explain why do the bacteria in our intestines influence our mood?

Our intestines communicate directly with our brain through an axis called the gut-brain axis. The gut microbiota, consisting of billions of bacteria in our digestive...

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Explain why do pineapples not continue to ripen once they are picked?

Explain why do pineapples not continue to ripen once they are picked?

The pineapple is quite unique when it comes to ripening: unlike other fruits, it stops completely after being harvested. While it grows quietly on its...

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Explain why do cactus flowers often bloom at night?

Explain why do cactus flowers often bloom at night?

Cactus flowers are often large and colorful, thus attracting nocturnal pollinators. They can range from brilliant white to bright red. Their petals are often large...

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Explain why are fingerprints unique to each individual?

Explain why are fingerprints unique to each individual?

Fingerprints are those fascinating patterns of ridges and grooves found on the skin of our fingers. But where do they come from? During embryonic development, our skin...

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