Geology

Icelandic Blue Striped Iceberg — Most icebergs are white, but they occur in a wide range of colors, including blue, green, yellow, black, and striped. The colors depend on the amount of air in the ice and whether it contains any impurities. Iceberg color changes over time. Exposure to air and sunlight can erode the […]

What Color Is an Iceberg?

This entry was posted on October 24, 2019 by Anne Helmenstine (updated on December 26, 2019)

Geology Word Search — This geology word search contains 30 geology glossary terms and is a great introduction for students along with a bit of fun added to the mix.

Geology Word Search

This entry was posted on February 18, 2019 by Todd Helmenstine (updated on February 18, 2019)

Abundance of Elements Earth Crust Periodic Table — Earth’s crust contains nearly all of the naturally occurring elements. This table and periodic table shows the relative abundance of elements in the Earth’s crust. Each element is represented by its atomic number, symbol, name, and abundance in milligrams per kilogram of Earth’s crust. Since 1 milligram is one-millionth of […]

Abundance of Elements in Earth’s Crust – Periodic Table and ...

This entry was posted on May 23, 2018 by Todd Helmenstine (updated on December 2, 2018)

Word search puzzles are a fun way to learn glossary terms for a subject. This word search has a hot set of glossary terms dealing with volcanos and vulcanology. Find volcano-themed words from the list forward or backward in vertical, horizontal, and diagonal directions. The puzzle is optimized to fit […]

Volcano Word Search

This entry was posted on April 28, 2018 by Todd Helmenstine (updated on July 20, 2018)

Quartz is only the most common mineral on the Earth's surface. (JJ Harrison) — Have you ever wondered which mineral is the most abundant? There is more than one right answer to the question, depending on the context of the question and how picky you want to get about the answer. Here’s a look at the contenders for the title of Most Common Mineral: […]

What Is the Most Common Mineral? Probably not What You ...

This entry was posted on September 14, 2017 by Anne Helmenstine (updated on October 1, 2017)

This wax model volcano illustrates many of the processes that occur in real volcanoes. — This wax and sand volcano is a realistic model volcano that is easy to make and erupts much like a real volcano. The volcano is extremely simple to make and interesting to watch. Wax “lava” forms a volcano in sand, eventually erupting into the atmosphere, which is water in this […]

Wax Volcano Demonstration – A Realistic Model Volcano

This entry was posted on September 9, 2017 by Anne Helmenstine