Rock and Roll: A Kindergarten Science Unit on Rocks and Soil

My students' fascination with rocks is evident from the first day of school, when they start presenting me with the pebbles they collect out on the playground. These are no ordinary pebbles--they are treasures! Soon, their cubbies are full of these "treasures" and I find little rocks stowed away all over the room. 

You can download all of the free printables for my Kindergarten Rocks and Soil Unit here:

Download Kindergarten Rock Unit

I introduce this unit by reading a simple and sweet book about rocks:

If You Find a Rock by Peggy Christian

Then I present the kids with my own rock collection. Some of these rocks are just everyday, ordinary rocks that I've picked up in my yard or alongside the road. Some are special rocks I've either purchased or inherited--pieces of crystals, fools gold, pumice, volcanic glass, etc. I am also a sucker for those tourist traps alongside the highway that let you purchase polished rocks by the scoopful. 

I let the kids explore--touch, feel, use hand lenses, sort, and just play with the rocks. Then I send a letter home to families asking the kids to bring in one or two (which usually ends up being 20) rocks from home. Some kids bring in very fancy crystals or brightly colored minerals. Others bring in dirty chunks of limestone. Either way, they think their rock is the most priceless treasure in the world!

After the kids have explored for a while, they fill out rock reports on their rocks and glue them into their science journals. (They also like to do reports on their friends' rocks, as well--so they usually end up with several reports in their journals).

We put all of the rocks together on a shelf and create a Rock Museum. The museum stays up throughout the unit. I leave some hand lenses out and the kids will go explore in the museum whenever they have some free time.

By this time, I have already read several books on rocks. One of my favorites is Let's Go Rock Collecting by Roma Gans. It's simple enough for the kids to understand, but has a lot of good science, as well.

 

Our kindergartners are not required to know the different kinds of rocks--as in igneous, sedimentary or metamorphic. If it's in a book and simple enough for the kids to understand, I'll present the information--but I do not dwell on it.

Here is a page we complete for our science journals--

Here is a picture of our Kindergarten Rock museum.

The kids colored the paper rocks and wrote rock facts (from books) on them.

In this picture, you can see my fancy geode, which I stole from my brother. I hope he doesn't read this blog!

Another fun activity we do is to see if rocks float or sink. I choose 6 rocks and label them with numbers. I make sure the rocks are different sizes, shapes and colors. Most importantly, I make sure I have a piece of pumice. The kids predict whether or not the rocks will float or sink (and they usually have enough of an understanding of the concept to correctly predict that they will sink). 

I save the pumice for last. Because the other five rocks have sunk, most kids predict that this one will, as well. They are very surprised when it floats!

You can see in this picture that the other 2 rocks have sunk, but the pumice is floating on top. 

Give the kids a piece of pumice to explore and see what they notice about it. How is it different from the other rocks? Hopefully, they will notice that it has lots of holes. Pumice is formed by volcanoes and the holes are little gas bubbles. You can decide at this point how much of a discussion you want to have about buoyancy and density and why things float (the mass of the water displaced is greater than the mass of the object). It's hard for even me to wrap my mind around! But they can understand that rocks are different!

Warning--if pumice gets soaked with water enough, it will sink. Which will spoil the point you are trying to make. Spoken from experience! Make sure your pumice is very dry when you begin.

Our kindergartners are required to know how we use rocks and soil in everyday life. So we take a walk around the school and campus to look for things made of rock. The kids are very literal and usually only point out things that are very obviously made from rock (like--say--rocks). 

We go back to the room and make a list (usually very short at this point). Then I show a PowerPoint that shows the different ways rocks can be used. 

  Download What Do We Use Rocks For

We add to the list we have started and the kids record the ways we can use rocks in their science journals.

 

After we have explored rocks for a while, we head outside to explore dirt. Do not attempt this activity with a new French manicure. Again--spoken from experience.

We take scoops and shovels and buckets outside and head for a nice, dirty spot. And we dig! We have these nifty sifters that came in one of our science kits--they are different sizes and will sift the dirt into smaller and smaller pieces. 

We scoop and we shake...

We shake and we scoop...

We look with our hand lenses...

We find fossils...

and seeds...

and bugs (but thankfully, no snakes!)

The kids record their findings in their science journals.

And then we bring some dirt in for a more formal investigation the next day. We methodically use the sifters and divide the particles into different bowls according to their sizes. When we're done, the kids can clearly see that soil is made up of tiny, little rocks. The kids record their findings in their science journals. 

There are a couple of great books I like to read about dirt and soil...

Jump Into Science: Dirt by Steve "The Dirtmeister" Tomecek

Dirt: The Scoop on Soil by Natalie M. Rosinski

We make a big poster listing the different things in soil--the kids LOVE that there's worm poop and animal poop in soil. Poop...Poop...Poop. Why do they love bathroom humor so much?

They record what they've learned in their science journals. Mostly, they've learned that soil contains worm poop.

But we also talk about how soil is essential to life. Without soil, we'd have no plants. Without plants, we'd have no fruits or vegetables. Animals would have no food to eat. So people would have no food to eat. Which brings us to their second favorite subject (after bathroom humor)...death. Ahhh....kindergarten.

The next day, we explore sand. I give the kids a tray full of sand and a hand lens and let them explore.

They record what they see in their science journals (tiny little rocks). I got the awesome poem off of Chalk Talk. We actually glue sand in our journal by spreading a little white glue on, dumping on some sand, shaking off the excess and letting it dry overnight.

Finally, I do a fun fossil activity. Fossils are not actually in our standards, but we live in Texas, and we have fossils everywhere. As a matter of fact, we have them all over our playground (especially these little shell fossils--my kids can find 15 or 20 of them a day!)

I read the book

Fossils Tell of Long Ago by Aliki.

I gather up objects like small shells, plastic bugs, plastic dinosaurs (this one has toes which make a great fossil) and sturdy, waxy leaves. I like to use Model Magic (which is pricey--but use a 50% off coupon at Michael's and it's not so bad). This year, I found this tan/peachy color, which was perfect (I guess it's actually called "Bisque." Fancy.)

I give each kid a small ball of clay and they gently press the object of their choice down to make an instant fossil! 

I make them wait a full day before they take them home--otherwise, their fossil gets smashed. They don't like to wait, but I remind them that real fossils takes thousands and thousands of years to form. They can wait a day!

Long after we have moved on from rocks and soil, my kids are still bringing in rocks that they find! 

I hope you have as much fun teaching this unit as I do!

Kindergarten Teachers ROCK!

Comments

[billi]

I love this!! You have inspired me to drag out all my rocks again before school is out. Thanx

[Sue]

Very Neat! I love the recording journal.

Sue
theverybusykindergarten :)

[Linda McCardle]

Thank you for this wonderful unit. I love your blog and look forward to every post!
Linda
A Teachers Touch

[Jen]

We recently moved to the south western lowland region of Nicaragua along the Pacific Ocean. We are surrounded by glorious rocks everywhere and my daughter loves to inspect and collect them. I just ordered several books on rocks and sand to be brought down here and I'm so excited to see 3 of them in your unit. Thank you for the very timely post...I was in the midst of planning my own unit for my daughter but now I'll take yours and add our local habitat to it. I was a first grade teacher in the states for 13 years and your blog has been saving me down here...thanks!

[Kerri]

Oh my gosh! This post is full of such great ideas. I'm starring this in hopes of doing this unit next year or maybe the end of the year this year if I can get it together. Thanks for sharing all these great ideas.
Ms. Kerri and her Krazy Kindergarten

[Sabrina]

Thanks so much for this freebie! What a great unit! I'm sure the kids had a blast and learned tonnes!

[Jessica]

THANK YOU SOOOOO MUCH for sharing your unit with us! This is such a frustrating standard to teach for me b/c I had no clue how to make it fun for the kids! But with your unit... it will be!!! =)

[Grace]

You are such an inspiration! Your details, photos, and enthusiasm are awesome. Thank you for all the info and sharing all your resources!

[Chris]

Love your use of the journal. Great unit.

[Miss Trayers]

I've always been a rock collector too! It's such a great passion for you to pass on to them. Looks like they had a great time! :)

NotJustChild'sPlay

[Jen Humphrey]

You are so thorough! I can't believe you have the time to share with us the photos of their journals, your presentation, the book covers that you read, etc... And all interspersed with your humor. I was a 2nd grade teacher for 5 years and would sometimes bring my camera to school. But inevitably I would not be able (or remember) to take pictures while dealing with the classroom management of a cool experiment. Your students are so blessed to be in your class. How fun!

[Holly]

Found you on Pinterest and I am excited to use your ideas in the fall with my homeschool co-op. Thank you so much for the Science Journal Printable.

[Amber]

So detailed! Can't wait for a bit more time to explore your blog....loved this post! Thanks for taking the time to blog.

[Tina]

Fantastic..
Children love nature...

[Kelli Bradley]

This rock unit sounds like so much fun! Thank you for sharing it.

[Kathy]

Thank you so much for sharing your lessons, material, and experience! This is just wonderful!

[jessica carter]

Your blog is awesome!!! I have downloaded some things, tweaked some ideas, and love the idea of using the journals! Thank you for making it so clear!

[Lauritha Lane]

Thank you for this wonderful resource! The science journal is empowering and reflective. I love that you put together an experience from real life and one they personally enjoyed. Approximately how long did it take to complete the unit? Gather the materials? I would like to attempt this unit. I think my colleagues and my students would like this. Thank you also for presenting it step my step and with pictures! This made it easy to follow.

[Charlotte]

I absolutely love this unit! Thanks so much for sharing it. I've been looking for kindergarten science that uses a range of literature and hands on activities and this is it! I also use science notebooks, but we are still at the emergent writing stage, so far... :)

[Jodie Carlsen]

Thank you for sharing this unit! I'm so excited to use some of your ideas with my class! We've just started our science units and many of the activities can easily be integrated into the unit. I wish it were warm enough for us to go outside and sift the dirt from outside!

[elizabeth]

How wonderful! We will be implementing this unit at Trinity Prep! Thank you!!

www.TrinityPrepAcademy.com

[Mary Pepper]

This looks so good but I am having trouble downloading the unit. Would love to have the printables!

[Kathryn]

Thank you for this post! I'm a new teacher and I'm starting a unit on rocks next week and had no idea where to begin! I teach overseas, so my resources are limited textbook-wise, but we do have a lot of rocks and dirt! I love your science notebooks activities, next year I definitely want to start science notebooks with my kids!

[keri]

Thanks for the great post. What are some other great rock books? Most of these listed are currently checked out and on hold at my library.

[Kim M]

Fantastic! I teach K-5 science and am always looking for neat ideas. I was interested because of the rocks, but found your progression perfect! Thanks so much for sharing.