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snowflake on a wool coat

Which has a lower freezing point, salt water or fresh water?

Classify newly formed snow crystals as fernlike stellar dendrites, columns, or needles

melting ice cubes

Figure 7: Thin section photographs illustrating snow-to-ice transformation at the depths of (left) 1 metre,

Are all snowflakes actually unique?

How do fish survive under icy lakes in winter?

How did people keep food cold before refrigerators?

For Students

Read Next

Iceberg, Arctic (polar, environment, global warming)

Why Does Water Freeze from the Top Down?

Glacier off coast of Argentina, South America. (glacial; snow; ice; blue ice; melting glacier)

What’s the Difference Between a Glacier and an Ice Floe?

winter ice melting salt on the ground, pattern as background

Why Does Salt Melt Ice?

Discover

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

Person paying with a credit card using a credit card terminal. Cashless payment, credit card reader

What Is a Cashless Society and How Does It Work?

Black widow spider

9 of the World’s Deadliest Spiders

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.

6 of the World’s Deadliest Natural Disasters

After a perfect launch, spectators try to catch a last glimpse of Space Shuttle Columbia, barely visible at the top end of the twisted column of smoke.

7 Accidents and Disasters in Spaceflight History

earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

The 6 Deadliest Earthquakes Since 1950

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Photos and Videos

snowflake on a wool coat

melting ice cubes

Figure 7: Thin section photographs illustrating snow-to-ice transformation at the depths of (left) 1 metre,

Which has a lower freezing point, salt water or fresh water?

Classify newly formed snow crystals as fernlike stellar dendrites, columns, or needles

Are all snowflakes actually unique?

How do fish survive under icy lakes in winter?

How did people keep food cold before refrigerators?

See All Videos and Images →

Topics

c-axis ice crystal columnar ice glacier iceberg ice in lakes and rivers sea ice ice jam ice formation ice cave soft water anomalous water steam hydrate hard water heavy water salinity

Dig Deeper: More Articles That Discuss This Topic

Key People

Leslie, Sir John

Sir John Leslie

Scottish physicist and mathematician

Quiz

water glass on white background. (drink; clear; clean water; liquid)

Water and its Varying Forms

Iceland, Glacier lagoon (Jokulsarlon)

Winter Weather Words Quiz

Demystified

winter ice melting salt on the ground, pattern as background

Why Does Salt Melt Ice?

Glacier off coast of Argentina, South America. (glacial; snow; ice; blue ice; melting glacier)

What’s the Difference Between a Glacier and an Ice Floe?

Iceberg, Arctic (polar, environment, global warming)

Why Does Water Freeze from the Top Down?