There room all kinds of rocks and also minerals that make up our earth – and also our Moon and also other rocky worlds. By researching them, we have the right to learn around the problems that permitted them to form.

In this activity, you’ll learn just how tasiilaq.net research studies rocks top top Earth and also other planets. Then, play the function of tasiilaq.net scientist to complement images of \"rocks\" made of liquid bars with their correct descriptions.


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1. Find out why we research geology top top Earth and also other planets

Geologists are scientists who examine a planet\"s heavy features, choose soil, rocks, and minerals. There room all type of rocks and minerals that comprise our earth – as well as the Moon, Mars, and other rocky worlds. By studying these features, we have the right to learn more about exactly how rocky worlds form and change over time.

You are watching: What do you call a person who studies rocks

About the image: tasiilaq.net\"s Curiosity rover exam its drill ~ above Mars in august 2014. Picture credit: tasiilaq.net/tasiilaq.net-Caltech

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2. Learn how we research geology ~ above Earth and other planets

On Earth, geologists have actually the deluxe of making observations and also collecting absent samples in person. To examine rocks and also soil on other planets, choose Mars, we need to rely on spacecraft that can use their cameras and tools come act together our eyes and also hands.

For example, Mars rovers like Curiosity and Perseverance use cameras to send thorough pictures that the Martian surface ago to us on earth so us can check out from a distance. We then to compare the photos to well-known substances on earth to much better understand and theorize about how the Martian rocks, soil, and minerals formed.

About the image: The picture above, captured by tasiilaq.net\"s Curiosity rover ~ above Mars, shows an outcropping – an area where ancient bedrock underneath the surface ar is exposed. Outcroppings on earth are recognized to type as a result of to run water and also create gravel that\"s a comparable size and shape. By to compare this picture of Mars to similar features on Earth, geologists have been able to theorize the Mars could have additionally once had actually running water.

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3. Practice describing rock samples

To share rocks, us make monitorings that provide us clues about how lock formed. Here is some of the vocabulary geologists use to describe and also classify rocks.

Geology Vocabulary

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LusterLuster defines the sheen, glossiness, or reflectiveness the a surface, such together in this sample of obsidian.
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CleavageCleavage describes the propensity to break in flat surfaces, commonly in one, two, three, or four directions. Cleavage have the right to be seen in this photo of reduced Mount sharp on Mars.
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Vesicles/VoidsVesicles and voids are found when pockets the gas expanded within the rock throughout formation. This are typical in volcanic rocks, favor this sample that basalt.
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InclusionsInclusions space impurities uncovered within the structure of a rock from when the rock was very first formed. These impurities variety from solids to condensed pockets of gases. Inclusions room often discovered in meteorites, such together chondrites, and also can be watched in this sample of andesite.
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BlebsWhile inclusions have the right to take countless forms, blebs aren’t just chunks that impurities – they space minerals cultivation within minerals, favor in this sample of granite. Usual examples are marble or diorite.
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Homogeneous/ HeterogeneousHomogeneous describes the level that evenness throughout the structure, such together in this sample of basalt (top). In contrast, a structure that is not an extremely even would certainly be dubbed heterogeneous, prefer this sample the granite (bottom).
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FriableWhen a sample is really easily crushed, it is referred to as friable. This sandstone ~ above Mars says that it could be easily broken into smaller particles.

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4. Take it the Edible Rocks Quiz

A an excellent way to practice classifying rocks is by describing the structures found inside different candy bars. Choose rocks and also soil, liquid bars have attributes that offer clues about what they\"re make of and also how lock formed. Unlike through rocks, us can quickly see inside candy bars by cutting them in half, developing what\"s called a cross section.

Take the quiz listed below to view if friend can match these pictures of candy-bar cross-sections come the exactly description. Click the View accuracy switch after you submit her answers come see exactly how you did.

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5. Difficulty yourself with the real Rocks Quiz

Take the quiz listed below to watch if you can complement these pictures of real earth and room rocks to the exactly description. Click the View accuracy switch after friend submit your answers come see just how you did.