{"id":53366,"date":"2025-09-28T17:50:13","date_gmt":"2025-09-28T08:50:13","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53366"},"modified":"2025-09-28T17:50:13","modified_gmt":"2025-09-28T08:50:13","slug":"rock-detectives-how-to-uncover-earths-secrets-with-just-6-stones","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53366&lang=en","title":{"rendered":"Rock Detectives: How to Uncover Earth&#8217;s Secrets with Just 6 Stones"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Ken Kuwako, Science Trainer. Every Day is an Experiment!<\/strong><\/span><\/p>\n<p>That pebble on the side of the road. That large boulder tucked away in the corner of the park. Wouldn&#8217;t it be thrilling if these were actually time capsules whispering tales of Earth&#8217;s ancient drama? Well, they might be! Many are actually igneous rocks, born deep inside the Earth when molten magma cools and solidifies.<\/p>\n<p>When students encounter the &#8220;Classification of Rocks&#8221; in junior high science, many feel the textbook photos don&#8217;t quite click or that the names all blur together. Sound familiar? That&#8217;s why I&#8217;m sharing a class where we transform the often tedious memorization of igneous rocks into an intellectually stimulating, active adventure, like a group of detectives solving a geological mystery. A hands-on workshop where students classify six different igneous rocks shone brighter in their eyes than I could have imagined. I want to share the magic of truly &#8220;seeing, touching, and thinking&#8221; in science that this lesson rekindled.<\/p>\n<hr>\n<p>The &#8220;Challenge&#8221; from the Earth Itself<br \/>\nThe materials we use in this lesson are, in a way, works of art created by the Earth.<\/p>\n<ul>\n\u00a0\t<\/p>\n<li style=\"list-style-type: none;\">\n<ul>\n\u00a0\t<\/p>\n<li>Specimens of 6 Types of Igneous Rocks (Granite, Diorite, Gabbro, Rhyolite, Andesite, Basalt). If actual rock kits aren&#8217;t available, photo cards can be substituted, but the feel and weight of the rocks are important clues, so I highly recommend the real thing.<\/li>\n<p>\u00a0\t<\/p>\n<li>A3 Worksheet (for the classification chart) \u2192 Make sure the key terms like &#8220;Color&#8221; and &#8220;Crystal Size&#8221; are clearly written in large boxes.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-48226 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3.jpg\" alt=\"\" width=\"449\" height=\"302\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3.jpg 1562w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3-300x202.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3-1024x688.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3-768x516.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/cadb034fa349092e7b5e48df6fbed8c3-1536x1033.jpg 1536w\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" \/><\/p>\n<ul>\n\u00a0\t<\/p>\n<li>Colored stickers or sticky notes (for marking classification groups)<\/li>\n<p>\u00a0\t<\/p>\n<li>A mnemonic card\/slide for classifying igneous rocks: &#8220;Shin-Kan-Sen-Ha-Ka-Ri-Age&#8221; (a popular Japanese mnemonic)<\/li>\n<\/ul>\n<hr>\n<p>The 45-Minute Mystery: Classifying Igneous Rocks<br \/>\n1. Introduction: The Story Begins (10 minutes)<br \/>\nWe start with volcanoes. &#8220;The Earth&#8217;s interior is incredibly hot, filled with magma\u2014molten rock. When that magma cools and solidifies, it becomes an &#8216;igneous rock.&#8217; But there are actually two main groups of igneous rocks.&#8221;<\/p>\n<p>Then, I pose the challenge to the students:<br \/>\n[The Question] &#8220;Where and how do you think these rocks in front of you were formed?&#8221;<br \/>\nAnd so, their detective work begins.<\/p>\n<p>2. Mission 1: Classify by Color! (10 minutes)<br \/>\nThe first instruction is simple: &#8220;Work in pairs and divide the rocks into two groups: the &#8216;light-colored group&#8217; and the &#8216;dark-colored group.'&#8221;<\/p>\n<p>Students immediately start moving the rocks, debating, &#8220;This one&#8217;s whitish,&#8221; and &#8220;This one is black.&#8221; However, they quickly hit a snag with the intermediate-colored rocks: &#8220;Which one does this belong to?&#8221; This realization that &#8220;looks can be deceiving&#8221; is the perfect entry point for genuine scientific inquiry.<\/p>\n<p>3. Mission 2: Focus on Crystal Size! (10 minutes)<br \/>\nNow the A3 worksheet comes into play. They spread it out in the middle of the desk and start thinking.<br \/>\n&#8220;Look closely. Are the grains inside the rocks all the same size?&#8221;<\/p>\n<p>Students discover some rocks have large, sparkling crystals, while others have tiny grains, making the surface look rough or smooth. This leads to classifying the two main groups:<\/p>\n<ul>\n\u00a0\t<\/p>\n<li>Large Grains (Plutonic Rocks): Evidence that the magma cooled slowly, deep underground, like simmering a stew.<\/li>\n<p>\u00a0\t<\/p>\n<li>Small Grains (Volcanic Rocks): Evidence that the magma erupted near the surface and cooled quickly.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41364 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda.jpg\" alt=\"\" width=\"736\" height=\"418\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda.jpg 1806w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda-300x170.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda-1024x582.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda-768x436.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/74614aa1d58c72d01939f88c0f32afda-1536x873.jpg 1536w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><\/p>\n<p>4. Unraveling the Mystery: The Core of the Story (10 minutes)<br \/>\nBy combining the two clues\u2014color and crystal size\u2014the true identities of the six rocks are finally revealed.<\/p>\n<p>Why the difference in crystal size? It all comes down to the &#8220;place&#8221; and &#8220;time&#8221; the rock was born: Did the magma cool slowly, deep underground (Plutonic rock), or quickly, near the surface (Volcanic rock)? As I hear the students&#8217; excited &#8220;I got it!&#8221; moments, we share the joy of doing science by observing, manipulating, and thinking.<\/p>\n<p>5. Sealing the Memory with a Spell (5 minutes)<br \/>\nFinally, I introduce the &#8220;magic spell&#8221; for memorization: &#8220;Shin-Kan-Sen-Ha-Ka-Ri-Age.&#8221;<\/p>\n<ul>\n\u00a0\t<\/p>\n<li>Shin (Plutonic) \u2192 Ka (Granite), Sen (Diorite), Ha (Gabbro)<\/li>\n<p>\u00a0\t<\/p>\n<li>Ka (Volcanic) \u2192 Ri (Rhyolite), A (Andesite), Ge (Basalt)<\/li>\n<\/ul>\n<p>Because they just had the hands-on experience of classifying the rocks themselves, this mnemonic slips right into their minds and sticks, forming a deep memory.<\/p>\n<hr>\n<p>The Profiles of the Rocks<br \/>\nHere are the profiles of the six unique rock personalities that took center stage in the lesson.<\/p>\n<div>\n<table>\n<thead>\n<tr>\n<th>Rock Name<\/th>\n<th>Rock Type<\/th>\n<th>Crystal Size<\/th>\n<th>Color<\/th>\n<th>Key Point<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Granite<\/td>\n<td>Plutonic<\/td>\n<td>Large (clearly visible)<\/td>\n<td>Light (white to pinkish)<\/td>\n<td>Rich in quartz and feldspar; often sparkly. Famous as &#8220;mikage-ishi&#8221; (Japanese term for granite).<\/td>\n<\/tr>\n<tr>\n<td>Diorite<\/td>\n<td>Plutonic<\/td>\n<td>Large<\/td>\n<td>Intermediate (grayish)<\/td>\n<td>A salt-and-pepper look of black and white. Intermediate among plutonic rocks.<\/td>\n<\/tr>\n<tr>\n<td>Gabbro<\/td>\n<td>Plutonic<\/td>\n<td>Large<\/td>\n<td>Dark (blackish)<\/td>\n<td>Overall dark-colored and heavy-looking.<\/td>\n<\/tr>\n<tr>\n<td>Rhyolite<\/td>\n<td>Volcanic<\/td>\n<td>Small (gritty\/fine)<\/td>\n<td>Light (whitish)<\/td>\n<td>The &#8220;sibling&#8221; of Granite, formed from the same magma type. Sometimes has a texture similar to pumice.<\/td>\n<\/tr>\n<tr>\n<td>Andesite<\/td>\n<td>Volcanic<\/td>\n<td>Small (fine grains)<\/td>\n<td>Intermediate (gray)<\/td>\n<td>A common volcanic rock, the &#8220;representative player&#8221; of Japanese volcanoes.<\/td>\n<\/tr>\n<tr>\n<td>Basalt<\/td>\n<td>Volcanic<\/td>\n<td>Small (nearly invisible)<\/td>\n<td>Dark (solid black)<\/td>\n<td>Formed when low-viscosity magma flows gently, like at Hawaii&#8217;s Kilauea volcano.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr>\n<p>The Two Detective Tools for Rock Identification<\/p>\n<div>\nThere are two main points to uncover a rock&#8217;s true identity!<\/p>\n<p>1. What Color Is It? (Light vs. Dark)<\/p>\n<p>This is due to the different minerals in the magma. Light-colored rocks have high silica content (the raw material for glass), making the magma sticky (high viscosity). Dark-colored rocks are rich in iron and magnesium, making the magma runny (low viscosity). The eruption styles are also different: sticky magma tends to erupt explosively, while runny magma flows out gently.<\/p>\n<p>2. Can You See the Crystals? (Large vs. Small)<\/p>\n<p>This is about the speed of cooling.<\/p>\n<ul>\n\u00a0\t<\/p>\n<li>Cooled Slowly (Plutonic): There was time for large crystals to grow. Think of them as well-developed adults.<\/li>\n<p>\u00a0\t<\/p>\n<li>Cooled Quickly (Volcanic): The rock solidified before the crystals could get big. These are the impatient ones!<\/li>\n<\/ul>\n<\/div>\n<hr>\n<p>Knowing the Name&#8217;s Origin Makes Rocks More Fascinating!<\/p>\n<div>\nA wonderful story is hidden within the name of each rock.<\/p>\n<table>\n<thead>\n<tr>\n<th>Rock Name<\/th>\n<th>English Name<\/th>\n<th>Origin\/Meaning of the Japanese Name<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u82b1\u5d17\u5ca9 (K\u014dgan)<\/td>\n<td>Granite<\/td>\n<td>Meaning &#8220;Flower-Ridge Rock.&#8221; A hard rock with a beautiful, flower-like pattern, like a &#8220;k\u014d&#8221; (ridge\/mound).<\/td>\n<\/tr>\n<tr>\n<td>\u9583\u7dd1\u5ca9 (Senryokugan)<\/td>\n<td>Diorite<\/td>\n<td>The minerals &#8220;flash&#8221; (sen), and the whole rock appears &#8220;green&#8221; (ryoku). A greenish plutonic rock that sparkles.<\/td>\n<\/tr>\n<tr>\n<td>\u6591\u308c\u3044\u5ca9 (Hanreigan)<\/td>\n<td>Gabbro<\/td>\n<td>Meaning &#8220;Mottled Blue-Gray Rock.&#8221; It has a &#8220;mottled&#8221; (han) pattern and an &#8220;azure-black&#8221; (reisei) color. A dark, mottled rock.<\/td>\n<\/tr>\n<tr>\n<td>\u6d41\u7d0b\u5ca9 (Ry\u016bmongan)<\/td>\n<td>Rhyolite<\/td>\n<td>Meaning &#8220;Flow-Pattern Rock.&#8221; You can see the &#8220;flow patterns&#8221; (ry\u016bmon) created by the viscous magma.<\/td>\n<\/tr>\n<tr>\n<td>\u5b89\u5c71\u5ca9 (Anzangan)<\/td>\n<td>Andesite<\/td>\n<td>Named because it is commonly found in the Andes (An-De-Shi) Mountains of South America. A truly global rock!<\/td>\n<\/tr>\n<tr>\n<td>\u7384\u6b66\u5ca9 (Genbugan)<\/td>\n<td>Basalt<\/td>\n<td>&#8220;Gen&#8221; means black. Named after the Genbu-do Cave in Hyogo Prefecture, where it was first studied in Japan. It evokes &#8220;Genbu&#8221;\u2014the Black Tortoise, a powerful, dark guardian god in Chinese mythology. A black, strong-looking volcanic rock.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr>\n<p>What I Felt Doing This Lesson<br \/>\nThe time students spent moving the rocks around, debating &#8220;this or that,&#8221; was more engaging than I had ever anticipated. When I was a junior high student, igneous rocks were &#8220;just something to memorize.&#8221; But when you actually hold them and closely observe the crystal grains, a story unfolds in your mind: &#8220;Ah, this one cooled slowly deep inside the Earth,&#8221; or &#8220;This guy burst out of a crater and solidified instantly.&#8221; Seeing them spread out the worksheet and arrange the rocks like scientists or detectives was incredibly encouraging. I realized anew that giving students the chance to &#8220;discover&#8221; things for themselves is what truly transforms learning into genuine joy.<\/p>\n<p>If you read this article, I encourage you to pause next time you see a rock on the roadside. By looking at its color and the size of its grains, you might just be reading a page from Earth&#8217;s grand drama.<\/p>\n<hr>\n<p>Bonus: The Worksheet for Your Class<br \/>\n&#x1f447; You can download the A3 classification worksheet here.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/docs.google.com\/presentation\/d\/190lr9yHU6wOtbpXweK9wTFNyOYQmaH0OrWjyNZqCgF4\/edit?usp=sharing\">Worksheet Download<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"efa6oZADJR\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=40764\">\u9053\u7aef\u306e\u77f3\u306f\u5730\u7403\u304b\u3089\u306e\u624b\u7d19\u3060\u3063\u305f\uff01\uff1f\u8272\u3068\u7c92\u306e\u5927\u304d\u3055\u3067\u89e3\u304d\u660e\u304b\u3059\u300c\u706b\u6210\u5ca9\u300d\u306e\u30df\u30b9\u30c6\u30ea\u30fc<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u9053\u7aef\u306e\u77f3\u306f\u5730\u7403\u304b\u3089\u306e\u624b\u7d19\u3060\u3063\u305f\uff01\uff1f\u8272\u3068\u7c92\u306e\u5927\u304d\u3055\u3067\u89e3\u304d\u660e\u304b\u3059\u300c\u706b\u6210\u5ca9\u300d\u306e\u30df\u30b9\u30c6\u30ea\u30fc&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=40764&#038;embed=true#?secret=zxQgke0lKM#?secret=efa6oZADJR\" data-secret=\"efa6oZADJR\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr>\n<p>Contact and Requests<br \/>\nBring the wonder and fun of science closer to you! I&#8217;ve put together easy-to-follow tips and fun experiments you can do at home. Please feel free to search around!<\/p>\n<ul>\n\u00a0\t<\/p>\n<li>About the author, Ken Kuwako: <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">Click here<\/a><\/li>\n<p>\u00a0\t<\/p>\n<li>For requests (writing, lectures, science classes, TV supervision\/appearances, etc.): <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">Click here<\/a><\/li>\n<p>\u00a0\t<\/p>\n<li>Article updates are shared on <a href=\"https:\/\/x.com\/kuwako\">X<\/a>!<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a>Experimental videos are available on the <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Idea Channel<\/a>!<\/p>\n<h3>\uff15\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p>\u30ad\u30fc\u30f3\u3068\u51b7\u3048\u308b\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\uff01\u6c17\u6e29\u304c\u4e0a\u304c\u3063\u3066\u304f\u308b\u3053\u306e\u6642\u671f\u30fb\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u5b9f\u9a13\u306f\u3044\u304b\u304c\uff1f<\/p>\r\n<p><img class=\"alignnone wp-image-39516 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg 1406w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-300x168.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-1024x572.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-768x429.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-320x180.jpg 320w\" alt=\"\" width=\"453\" height=\"253\" \/><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39513\">\u6db2\u4f53\u30bc\u30ed\uff01\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u304c\u6d88\u3048\u308b\u307e\u3067\u306e\uff13\u6642\u9593\u3092\u79d1\u5b66\u3059\u308b\uff08\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\uff09<\/a><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>4\u670830\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306e<a href=\"https:\/\/phys-edu.net\/wp\/?p=62906\">\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li>5\u67088\u65e5\uff08\u91d1\uff09<a href=\"https:\/\/phys-edu.net\/wp\/?p=62629\">\u7406\u79d1\u6559\u80b2\u30cb\u30e5\u30fc\u30b9<\/a>\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\uff08\u65e5\uff09\u3000\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000\u5343\u8449\u5927\u5b66\u306e\u516c\u958b\u7814\u7a76\u4f1a\uff08\u4e2d\u5b66\u7406\u79d1\u306b\u3064\u3044\u3066\u6388\u696d\u516c\u958b\u4e88\u5b9a\uff09<\/li>\r\n<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><br \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a>\uff08\u82f1\u8a9e\uff09<\/p>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>\r\n","protected":false},"excerpt":{"rendered":"<p>Ken Kuwako, Science Trainer. Every Day is an Experiment! That pebble on the side of the road. That large bould [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48227,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":""},"categories":[781],"tags":[],"class_list":["post-53366","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b17f009341ec54d2db0fd1f4590b68b8.jpg","jetpack-related-posts":[{"id":53529,"url":"https:\/\/phys-edu.net\/wp\/?p=53529&lang=en","url_meta":{"origin":53366,"position":0},"title":"Catchy Title Suggestion: Rock Detectives: Unlocking Earth&#8217;s Past in Your Hand","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67081\u65e5","format":false,"excerpt":"I'm Ken Kuwako, a Science Trainer, and for me, eve\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/08\/IMG_5679.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":52861,"url":"https:\/\/phys-edu.net\/wp\/?p=52861&lang=en","url_meta":{"origin":53366,"position":1},"title":"Crystal Clear Science: Making Crystals in Your Kitchen to See How Volcanic and Plutonic Rocks Are Born!","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670822\u65e5","format":false,"excerpt":"Hello! I'm Ken Kuwako, your Science Trainer. Every\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b36abe88a34dadf3f2eec26ac40e3872.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b36abe88a34dadf3f2eec26ac40e3872.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b36abe88a34dadf3f2eec26ac40e3872.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b36abe88a34dadf3f2eec26ac40e3872.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/b36abe88a34dadf3f2eec26ac40e3872.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":53328,"url":"https:\/\/phys-edu.net\/wp\/?p=53328&lang=en","url_meta":{"origin":53366,"position":2},"title":"Unlock a Hidden World: Turn a Dollar Store Cup into a Geologist&#8217;s Tool","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670828\u65e5","format":false,"excerpt":"I'm Ken Kuwako, the Science Trainer. Every day is \u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-09-27-10.11.25.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-09-27-10.11.25.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-09-27-10.11.25.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/09\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-09-27-10.11.25.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52622,"url":"https:\/\/phys-edu.net\/wp\/?p=52622&lang=en","url_meta":{"origin":53366,"position":3},"title":"Why Can\u2019t Sweet Corn Pop? The Explosive Secrets of Volcanoes and Magma","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u670819\u65e5","format":false,"excerpt":"I'm Ken Kuwako, a science trainer. 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