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Investigating the MAGIC of GEODES!

Posted by on October 14, 2015

Nature composes some of her loveliest poems for the microscope and the telescope.

~Theodore Roszak

Geodes ... they are like KINDER surprises ... just WAITING to be cracked open to reveal hidden treasures!

Geodes … they are like KINDER surprises … just WAITING to be cracked open to reveal hidden treasures!

We’ve had the most AMAZING adventure learning about geodes lately. Many of us have our own special geode samples. We think our Rocks and Minerals inquiry could go on HAPPILY for at LEAST a year or two … MAYBE even a LIFETIME! What follows are some of our thoughts and discoveries:

What IS that?!? The most AMAZING FAKE geode you have EVER seen!

What IS that?!? The most amazingย FAKE geode you have EVER seen!

“Do you know what geodes are? Well, here is some information about geodes. Geodes can be humungus or teeny tiny. I wonder how geodes are formed? How you YOU think geodes are formed? Guess what? You can make geodes! Our class made geodes. We made them with glue, eggshells, borax, clothing dye, boiling water, glass jars and sand. Don’t you think geodes are amazing?” ~Elise

“Did you know that people can make fake geodes? A geode is a rock that has crystals inside. Geodes are part igneous and part sedimentary. Geodes can be big or small. One can be big enough to fit a full grown man inside. Or, small enough to fit in our palm. If you have ever wondered, can people make fake geodes? well, they can. The most common crystals inside a geode are quartz crystals or amethyst crystals.” ~Tanek

“How is that? A little bit more! There! What colour would you like? Purple. The class made geodes! This is what we used to make our geodes: glue, borax, clothing dye, boiling water, eggshells and glass jars. Today we saw our geodes. I felt very happy because I didn’t know we could make geodes out of an eggshell. Geodes are a mineral. Some geodes are several inches. Do you know where geodes come from?” ~Alexia

The supplies we need to make our OWN geodes ... not QUITE as beautiful as Mother Nature's ... but ... pretty incredible FAKES!

The supplies we need to make our OWN geodes … not QUITE as beautiful as Mother Nature’s … but … pretty incredible FAKES!

“Have you ever wondered what geodes are? Well, I am going to tell you. Geodes are things that look like rocks on the outside. And, sometimes you’ll get lucky, crack open the thing that looks like a rock and inside it will be a bunch of crystals. Geodes take millions and millions of years to form. They also come in many shapes and colours. Geodes are created in hollow areas or soil such as animal burrows and tree roots. Geodes get their colour from the type of crystals. Most geodes are found in deserts and some geodes are made from volcanoes. I wonder why most geodes are found in deserts? Geode comes from a Greek word that means “earth like”.” ~Jamie

“Did you know that geodes can grow in tree roots? And, they can grow in hollow places. And geodes can be different colours as well. And, geodes can be big or small. My class made fake geodes. I chose blue. And, I like geodes a lot.” ~Aboudi

“Have you ever wondered about geodes? geodes are round rock. They can be HUGE or very small. When they have not been cracked they look like any old rock but when people find them sometimes they crack them open and … ta da … there are beautiful crystals inside. People can also saw open geodes and then they are smooth. People also crack open geodes with a hammer or saw and then they are rough and pointy. Some people dye geodes and sell them. The bigger the geode the more money it costs. I wonder what the bitaba bird is. Geodes are amazing!” ~Sarah

Making fake geodes is something you want to do with an adult ... borax is a chemical and boiling water? Well ... it's HOT!

Making fake geodes is something you want to do with an adult … borax is a chemical … and … boiling water? Well … it’s HOT!

“What kind of rock is a geode? Hmm. Well, it’s a mix of igneous and sedimentary rock! Our class made fake geodes. Here are the ingredients. Glue, borax, clothing dye, eggshells, sand, boiling water and a glass jar! Wow! I wonder if they can turn back into lava, dirt, rock or water.” ~Cooper

“Wow! My crystals are TINY! Oh, I didn’t see you there! Do you want to know how to make your own geodes? Well, first, I’m gonna show you that I wondered why are geodes here? I really wonder why. Why? I love geodes. Even the fake ones. The fake geodes don’t really look too much like the real ones!” ~Daniel S

“Have you ever wondered if you could make geodes? Did you ever know that you can make FAKE geodes? This is what you need: glue, geodes, borax, clothing dye, boiling water, eggshells, glass jars and sand to make it. I should be telling you about my research! Geodes are mostly created in the hollow areas of soils, such as animal burrows or tree roots. The common dissolved minerals are also in eggs. Some geodes take millions of years to form. They can be BIG or small. Geodes can be wet and dry. I hope that is enough that you need to learn. If you are below grade three you will have a good time in grade three making geodes!” ~Mary

A special insider tip: using clothing dye, like Rit, makes the colours MUCH more vibrant than food colouring!

A special insider tip: using clothing dye, like Rit, makes the colours MUCH more vibrant than food colouring!

“Have you ever woken up in the morning and just thought it was a geode day? Have you wondered where geodes come from because I sure do. I think they can be found in hollow areas with lots of water. I wonder how the crystals form. A geode is a hollow rock that has crystal inside. I really love to learn about geodes. Everybody in my class loves geodes.” Daniel B

“OMG. You can make your own geodes. It was amazing when we made our geodes. Mine was green. It is now black. Do you know where to find geodes cuz I do! I love geodes. Have you ever thought that a rock is a geode because geodes can look like rocks. Geodes are just so cool.” ~Carson

“Do you know you can make your own geodes? If you don’t you will HAVE to know it! We made eggshell geodes. My geode colour is purple. Ella’s is too. They are so pretty. Those crystals are so sparkly. If you are wondering where to find geodes, it is in Mexico, the United States and California. Isn’t that amazing? I can’t wait to explore! There are adventures waiting for us! Let’s go!” ~Catherine

How do they FORM in nature? What colours do they come in? SO many wonders and NEVER enough time!

How do they FORM in nature? What colours do they come in? SO many wonders and NEVER enough time!

“Our class made fake geodes! They have real crystals. Is that ever cool! How do geodes form? Well, in the wold they do not form with borax. We know that. Did you know that there is a crystal cave in Mexico? Crystal caves are really actually big geodes! That’s cool! DO geodes form in Alberta? Fun: you can make your own fake geodes. This is how you make them: an eggshell, glue, borax, boiling water, clothing dye and a glass jar!” ~Ryan

“I like geodes because they shine and they’re rough. To make the geodes you need a glass jar with hot water and an eggshell and borax. Put five scoops of borax into the jar then mix until it is clear. After that you stir it but with food colouring in the jar and you have to put some borax on the egg.” ~Madison

“Do you ever wonder how geodes are made? Geodes are sometimes made of volcano rocks. Minerals push in a hollow place in the geode and it turns into a geode. Some geodes can be the size of you or bigger. That’s BIG. And, some can be the size of your finger nail or smaller. I wonder what the biggest geode is and what the smallest geode is. I found out that they are also made in roots of trees. They are sometimes smooth ย and brownish. They are also milky and lavender. The thing I wonder most about is how long it takes for a geode to form. I think it takes days or years. I wonder how geodes get the colour even when they’re not dyed. We made our own geode but it is fake and it is dyed. My dye was red. Other people had blue and purple and different colours. We used borax.” ~Matt

The HARDEST part? WAITING ... oh ... PLEASE hurry up! We want to see if we were SUCCESSFUL in copying Mother Nature!

The HARDEST part? WAITING … oh … PLEASE hurry up! We want to see if we were SUCCESSFUL in copying Mother Nature!

“Have you ever wondered about where to find geodes? You can find geodes in the Western United States, California, Arizona, Utah and Nevada. Also, did you know that all the geodes are not created the same way? We made fake geodes yesterday. I wonder if the geode can be found in a sidewalk? I think you wonder the same thing. Do you wonder how the geodes are formed? I’m gonna tell you how the geodes are formed. Geodes are formed by a volcano or other ways. Also, geodes are things that look like a normal rock but inside has beautiful crystals. You need borax, eggshell, a glass jar, glue, clothing dye, boiling water and sand to make a fake geode.” ~Ella

“Mrs. Renton is teaching us about geodes. First of all a geode is a rock. It does not sound fun but really it is! Inside a geode are amethyst crystals! Did you know scientists don’t know how geodes are made? We made FAKE geodes! It was fun! We started yesterday. I was in the first group. To make one you need: a glass jar, clothing dye, eggshell, borax and boiling water. First put borax in. Then the water. Mix them together. (Never clink the glass a lot!) After that, put the clothing dye in the water. Mix and finally put the egg in. Let it sit until 10:15 the next morning. Take it out. Let it dry. Then you have a fake geode. I wonder when scientists will figure out how geodes are made. My fake geode is shimmery and sparkly!” ~Carissa

“Have you asked yourself, I wonder can I make a fake geode? Well, the truth is you CAN! In my class we made fake geodes using only: glue, borax, clothing dye, boiling water, eggshells and a glass jar. For the next thing, you do not need but it is sand. So, this is how you put it altogether. First you take a normal egg and empty out all the filling so just the eggshell is left. Make sure the eggshell is dry and add glue all around the inside of the shell, (half of the shell). Then sprinkle the borax all around and leave it over night. Once you leave it over night and wake up in the morning get your big mouth glass jar and put the water on to boiling. Get some more borax and put about 1/4 cup of borax in the jar and add the boiling water in just until it goes over all the borax. Then stir until all the borax has dissolved, (that’s when the water looks clear). Once stirred add in clothing dye, your choice of colour, (we used blue, red purple and green). Then, take out an eggshell and use the spoon to push it down. Leave it over night and … ta da … you should have a fake geode!” ~Aimee

WOW! They are GORGEOUS! They were !WORTH the wait! Look at the AMAZING crystal formations the BORAX makes!

WOW! They are GORGEOUS! They were WORTH the wait! Look at the AMAZING crystal formations the BORAX makes!

“Do you want to make a fake geode? You just need borax, glass jars and eggshells that are clean and of course clothing dye. You put borax in the glass jar and then you put boiled water in the jar. Then stir it with a spoon until it looks like water. Then, put clothes dye in the glass jar and stir it. Then put the eggshell in. Wait until 24 hours. After 24 hours then take the eggshell out with a spoon. Then you can see crystals!” ~Evan

“Did you know that you can make fake geodes? These are things you will need: a glass jar, borax, clothing dye, boiling water, eggshell, glue and sand. Be careful. Don’t manhandle your geodes. If you touch it don’t put your hand near your face! I wonder how fragile they are! I wonder how the borax turns into those bumps? And, how does the clothing colour turn the borax into the colour?” ~Ethan

“Let me tell you something about geodes. Did you know that geodes can be as small as a fingernail? And, as big as a door! And, also, my class made GEODES. They are super duper COOL! They are made of borax, eggshell, glue, clothing dye, boiling water, glass jar and sand. That’s all. You can also find out how to make fake geodes on the internet!” ~Mila

I CAN'T believe how BEAUTIFUL the CRYSTALS are!

I CAN’T believe how BEAUTIFUL the CRYSTALS are!

“Have you ever wondered what a geode is? Well, here is your answer. Over time the outer shell of a geode, the circular shell, hardens and the water containing silica gets ready to contain any variety of dissolved minerals. The most common minerals are quartz but amethyst and calcite are also found. Geodes can form in any cavity – rounded formations in sedimentary rocks. They can form in gas bubbles in igneous rocks like lava. Geodes can be big or small. A geode is a small round rock with a hollow cavity filled with crystals. If you find a geode and crack it open there’s always a surprise of beautiful crystals waiting for you! Geodes are awesome! I love geodes.” Riddhima

“We are learning about geodes. We just made fake geodes with borax, boiling water, eggshells, glass jars, and clothing dye. My geode is purple. I think purple is the coolest colour because it looks the best. We used iPads to research about geodes. Geode comes from the Greek word that means “earth like”. It also comes from the Latin word “shape of the earth”. I wonder where geodes come from.” ~Simos

“I wonder how geodes get inside rock. Geodes are one type of mineral. Some geodes grow on tree roots. What colours are geodes? Geodes are created in hollow areas. Can geodes break? What do we make out of geodes? Are geodes gemstones?” ~Alvin

WHY is it that EVERY time we find an answer to a wonder that we end up with a tonne MORE wonders???

WHY is it that EVERY time we find an answer to a wonder that we end up with a tonne MORE wonders???

“Have you ever wondered how to make geodes? Have you ever known that some real geodes have blue crystals and are not dyed? I wonder how geodes start and form? I discovered on the iPads that geodes can be many different colours. I wonder how the crystals are formed in geodes. I really liked making our geodes because it was really fun and easy. I wonder what type of rock geodes are. Geodes are just way too fun to research!” ~Omar

“Do you know how to make a geode? I’m learning from Mrs. Renton. You need a jar, glue, boiling water, clothing dye. That is it. Now it’s your turn to do this. This is your time. It’s going to be awesome for you to make your own fake geode. Geodes look like crystals. Geodes can grow to the length of a man.” ~Kagan

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We had SO much fun making our own geodes, sketching them and investigating more about the REAL geodes created by Mother Nature. The crazy thing is … every time we discover something cool we are left with SO many more wonders!

Men love to wonder, and that is the seed of science.

~Ralph Waldo Emerson

11 Responses to Investigating the MAGIC of GEODES!

  1. Claire

    Hi guys

    I never knew that geodes could be so cool!
    Making them is such a great idea! When I was in grade 3 we made crystals!
    When I was reading your comments I didn’t know why you needed egg shells, but then I saw the picture of a few of you guys looking at the geodes. I realized that the eggsells were to form the shape of the geode. Why didn’t I think of that before!

    You are all such good writers! You are definitely reeling the reader in!

    Have fun learning about rocks, fossils, and geodes!

    Claire ๐Ÿ™‚

    • The Grade Three Bloggers

      Hi Claire!

      Thank you for the GREAT comment! We can tell that you are an OLD blogger because you REALLY know how to leave an effective comment on a blog! We didn’t know what the eggshells were for EITHER but when Mrs. Renton did a demonstration for us THEN we saw what they were for! We think it’s SO cool that you can fake a geode … and … it looks SO real! They definitely DON’T look 100% real, like the ones you see in rock stores, but they’re still pretty good! Making our fake geodes was REALLY fun! We think that Elise should teach YOU how to do it!

      Thanks for the writing compliment … we have been working REALLY hard to reel our readers in. We think YOU reeled US in with YOUR comment!

      Hope you keep checking back, Claire! We love that a few OLD bloggers still check out the blog and leave the NEW bloggers COMMENTS

      The Grade Three Bloggers ๐Ÿ™‚

  2. Irene

    Wow! Those geodes are so cool! I think I might like a geode ring or necklace for Christmas (hint! hint!)…

    Irene

    • The Grade Three Bloggers

      Hi Irene!

      Thank you for the great comment! We think you’d probably need a really SMALL geode to make a ring! Do you know how to make your own FAKE geode? We think that you probably would NOT want a fake geode for a necklace or a ring because it might not stay that shiny for that long. As borax crystals lose their moisture they start to turn a chalky colour. Mrs. Renton is trying a new experiment with her fake geode this year. She put a clear coat of spray paint onto her finished geode to see if that would SEAL the moisture in. We won’t know for about ten months whether that will work or not. Keep your fingers CROSSED for us!

      We sure hope you get a special geode surprise for CHRISTMAS!!!

      The Grade Three Bloggers ๐Ÿ™‚

  3. David

    I really enjoyed your writing today. I learned so much about geodes. Do different parts of the world produce different colours or are the colours random?

    • The Grade Three Bloggers

      Hi David!

      Thanks for the AWESOME comment! We learned a LOT about geodes TOO! Some of us researched and discovered that geodes get their colours because of the type of crystal that grows inside them.

      http://www.rocksandminerals4u.com/geodes.html

      We’re not sure if certain places in the world produce certain coloured geodes but one of the Grade Three Bloggers thinks that it might be that the type of mineral might be specific to only one area of the world and that would change the type of crystal AND the colour. We like the way THIS blogger thinks!!!

      We’ve tried to do some searching and we’ve discovered that most geodes are found in desert regions and also around volcanoes but we THINK they can be found in most parts of the world. Maybe YOU have found an answer to help us out!

      http://www.desertusa.com/desert-prospecting/geode.html

      Thanks for getting us thinking!

      The Grade Three Bloggers ๐Ÿ™‚

  4. David

    What tools do you use to split geodes?

  5. The Grade Three Bloggers

    Hi David!

    Thanks for the wonderful comment! You put the geode in a cloth, or an athletic sock, and you hammer the geode softly. The tools you would use to split a geode are: a hammer and a cloth to cover the geode to stop all the bits from flying. If you hammer a geode then it will be rough. You can also saw open geodes and then they are smooth. Some of us like the rough ones better because then you can feel what the crystals really feel like. But, if it sawn, then it is smooth and hard to really feel the crystals. Either way, we would be happy to own a cracked open or sawn geode ANY day!

    Have a GOOD day!

    The Grade Three Bloggers ๐Ÿ™‚

  6. Marissa

    Hi grade threes I am Marissa a grade six student and carson’s sister. I remember when I was in grade three and I was soooo interested in geodes I was determined that when I was older I would know so much more about geodes! I hope you guys experience the same amount of aw and wonder as I did. I was in your class yesterday and you guys were so focused and on task I was SO impressed, and Ms.Renton you were so kind. I know you guys will all have a blast in grade three!
    Have an Awesome day!
    Marissa

  7. Joan

    hi grade threes!!
    I am Sarah’s Nana and I have really enjoyed looking at the blog!! You have an amazing teacher!! I will be looking at the blog to see what other great subjects you will be learning about!
    Have fun!!!

    Joan

    • The Grade Three Bloggers

      Hi Joan!

      Thanks for the comment! We are glad that you are enjoying the blog! It’s a great way of showing our families some of the things we are learning about! We are glad that you think we have an amazing teacher, (she’s blushing right now)! We will have fun sharing MORE of the stuff we are learning about! We LOVE that Sarah shared our blog with you!

      Keep checking back! Have an AWESOME day!

      The Grade Three Bloggers ๐Ÿ™‚

      PS Sarah says XOXOXO

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