Earth Science Science

Types of Rocks for Kids – Edible Rock Classification Earth Science Activity

As we continue to learn about Earth Science we are digging in to learning about the types of rocks for kids. This is a fun, simple way for kids to start to understand what are the 3  types of rocks and how they are formed. In this edible rocks project we used common kitchen items to recreate basic food rocks! Let me show you how to make edible rocks with your preschool, pre-k, kindergarten, first grade, and 2nd grader for some fun, hands-on science for kids!

As we continue to learn about Earth Science we are digging in to learning about the types of rocks for kids. This is a fun, simple way for kids to start to understand what are the 3  types of rocks and how they are formed. In this edible rocks project we used common kitchen items to recreate basic food rocks! Let me show you how to make edible rocks with your preschool, pre-k, kindergarten, first grade, and 2nd grader for some fun, hands-on science for kids!


Types of Rocks for Kids

A fun way to learn about the differences in types or rocks is using edible rocks! What could be more fun or memorable than eating different types of rocks, right? My kids though so too! Kids learn best by exploring the world they can see and explore. As kids pick up rocks and make rock collections help them to understand the 3 types of rocks for kids with this easy rock activities for kids from preschoolers, kindergartners, toddlers, grade 1, grade 2, and grade 3 students. With chocolate chips, children will make edible rocks that demonstarte the rock life cycle for kids in a way that makes sense and will stick too! This is such a fun, easy rock science experiment / demonstration for parents, teachers, tutors, and homeschoolers to add to their day!

What are the 3 types of rock

We started by talking about the study of rocks, looking at this book about lots of the amazing rocks in our world, and scientists who study rocks – geologists. Then we talked about how scientists classify things to better learn about our world. We practiced classifying and sorting a pile of shoes (this kids thought this was hilarious!). Then I shared that rocks are also classified; rocks are divided into three basic groups based on how they were formed in nature.

  • Igneous Rocks  – Rocks formed from melted rock from the Earth’s core that have erupted from a volcano and then cooled and solidified. Examples include: obsidian, granite, basalt, and andesite porphyry.
  • Sedimentary rocks – These rocks form from sediment, parts of rocks / minerals, or remains or animal or plant matter at the surface of the Earth.  These rocks have distint parts or sections and are may be loosely held together or softer. Sedimentary rocks are forming all the time. Example include: sandstone, limestone, and shale.
  • Metamorphic rocks – When sedimentary or igneous rocks are put under extreme pressure or heat so that they completely change. It doesn’t just melt them, but changes them into denser, more compact rocks. Examples include: phyllite, schist, gneiss, quartzite and marble.

edible sedimentary rocks activity for kids

Edible Rocks

I’ve seen lots of different recipes to make edible rocks online, but honestly I just didn’t have the time.  I can’t be the only busy homeschool mom just trying to make it through the day with a semi-tidy house, dinner on the table, and happy educated kids! So I stuck with things I already had in our house.

Supplies needed:

  • snicker bars
  • parchment paper – optional
  • microwave

How to Make Edible Rocks

How to Make Edible Rocks

  • Sedimentary Rock Snickers – If you carefully cut a snicker bar you will see all the different layers of “sediments” in it that have been pressed together. That exactly how Sedimentary Rocks are formed.
  • Metamorphic Rock Smashed Snickers – We put a snicker between layers of parchment paper, covered with a book, and let the kids stand on top. After the Sedimentary Snicker rock was under pressure it changed into a metamorphic rock. Metamorphic means change and a metamorphic rock is any other rock that changes into a new rock because of heat and/or pressure.
  • Igneous Rocks We decided to use what we had on hand, miscellaneous snicker rock parts! So we put the parts in a microwave safe dish and put it in the microwave until it boiled so the texture would change to more dense and smooth, about 1-3 minutes and stirred. Then we carefully pulled it out (it will be HOT) and used a spoon to drop lava rocks on the parchment paper. When they cook you can eat them. Igneous Rocks gets heated very hot and cools very quickly which makes it hard, smooth, and sometimes traps air bubbles inside.

3 types of rocks for kids

3 types of rocks for kids

This is such a fun, and memorable rock science activity to help kids understand the basic differences in the types of rocks they will find on our planet.
smashing geodesEarth Science Homeschool - Geodes

Geodes for Kids

We compared rocks in our rock collection and started our own collection from a nature walk. Then we painted our rocks to make pet rocks!

Finally, we broke open Geode rocks (rocks that have a drop of moisture crystallize inside). It was Goofy’s favorite part! I added a life lesson by showing how we are like the Geode. We are unworthy and sinful. But God turns changes our heart and makes us a beautiful creation.

Young kids are naturally fascinated by various shapes, colors, and sizes or rocks they find. Turn that natural curiosity in to a study about types of rocks for kids! This hands-on rock life cycle project will help children learn about what are the 3 types of rock and how they are different. In this rock activities for kids, students will make edible rocks that are Sedimentary rocks, Metamorphic rocks, and Igneous rocks and the rock life cycle in a fun, meaningful way! Use this rock science project with preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too! These fun, free printable Types of Rocks worksheets are a great way to learn about the different rocks that can be found on our planet Earth! These rock  printables allow kindergarten, first grade, 2nd grade, 3rd grade, and 4th grade students to learn about igneous rocks, metamorphic rocks, and sedimentary rocks. Also included is rock life cycle information with rock cycle diagram worksheet. SImply print the the rock cycle worksheet and you are ready to learn with handy science worksheets for kids. As we continue to learn about Earth Science we are digging in to learning about the types of rocks for kids. This is a fun, simple way for kids to start to understand what are the 3  types of rocks and how they are formed. In this edible rocks project we used common kitchen items to recreate basic food rocks! Let me show you how to make edible rocks with your preschool, pre-k, kindergarten, first grade, and 2nd grader for some fun, hands-on science for kids! One of my kids favorite ways to learn a new concept is with food! So when we were learning about the types of rocks for kids, I knew they would get more excited and remember it better if we did an edible rocks project! I came up with this starburst candy project to teach children about the 3 types of rocks! Use this rock activity to learn about the rock cycle for kids from preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too!

Rock Activities

With 2 simple ingredients you have in your kitchen you can quickly and easily make your own plastic milk! Kids are going to be super impressed with this fun, hands-on Milk Plastic project! With this very simple science experimentfor kids, you can turn milk into plastic! This milk and vinegar experiment is perfect for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th graders too .Simply print pdf file with milk and vinegar experiment worksheet and you are ready to start this fun science experiment with milk! Have you ever heard of a lemon volcano? Kids are going to love this fun, creative,volcano experiment that screams summer! This simple lemon volcano experiment is perfect for curious kids from toddler, preschool, pre-k, kindergarten, first grade, 2nd grade, and 3rd graders too. All you need are a few simple materials to make some amazing erupting lemon volcanos! WOW your kids with this Watermelon Volcano! This summer activity for kids is a great way to sneak in a science experient. Kids are going to love this crazy cool bouncy egg experimert! Children will be amazed by this egg experiment where they will literally dissolve the shell of a raw egg to create a bouncy egg. This bouncy egg vinegar project is fun for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, and 4th grade students. Plus our version of this egg in vinegar experiment has a fun, colorful twist!

Food science experiments for kids

Use items commonly in your kitchen to try these food experiments for kids, but note they are NOT all edible!

Have you ever tried making a Rainbow in a Jar project? If you haven't tried this classic density experiment, I'm going to show you how easy it is to make with a few common household items! This rainbow science experiment is so pretty and will amaze your preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th grade students. Try this rainbow experiment as part of a weather theme, St Patricks Day activity, a rainbow theme or a spring activity for kids.  Looking for a really fun and memorable science experiment for kids? You will love these EPIC pop rocks experiment. Try this pop rocks science experiment with preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, and 4th grade students to try a simple chemical reaction. This Whether you try this pop rocks science experiments for homeschool science, at a science birthday party, or as part of a summer science project - this is a MUST try,  really cool science experimentkids will LOVE. Candy science is a fantastic way to demonstrate scientific principles using something kids love, candy! With these simple Colorful Candy Science Experiments, the biggest challenge is not eating all of your science supplies. These easy science projects are perfect for preschool, pre-k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th grade students.

About the author

Beth Gorden

Beth Gorden is the creative multi-tasking creator of 123 Homeschool 4 Me. As a busy homeschooling mother of six, she strives to create hands-on learning activities and worksheets that kids will love to make learning FUN! She has created over 1 million pages of printables to help teach kids ABCs, science, English grammar, history, math, and so much more! Beth is also the creator of 2 additional sites with even more educational activities and FREE printables - www.kindergartenworksheetsandgames.com and www.preschoolplayandlearn.com

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