Earth Materials Mock Rocks Lynn Garner and Lori Mitchell

What Are Earth Materials? An earth material is any natural material that is not now living on the earth’s surface.

Vocabulary Geology: the study of the Earth Geologist: A Scientist who studies Earth materials, such as the rocks and minerals on the Earth

WHAT ARE SOME PROPERTIES WE CAN USE TO DESCRIBE ROCKS?

Rock Properties Texture Color Shape or edges Size Mass Smell

MOCK ROCKS CHALLENGE: YOU WILL DESCRIBE THE ROCK IN DETAIL SO THAT LATER ON IF THE ROCK IS CHANGED IN ANY WAY, YOU WILL HAVE A RECORD TO REFER TO.

TOOLS AND NOTEBOOKS HAND LENS METER TAPE BALANCES MASS SETS EARTH MATERIAL NOTEBOOK PAGES 2 & 3.

Measurement Vocabulary Diameter: the distance across a circular object Circumference: the distance around a circular object Depth: how thick an object is Meter tape: measures linear dimensions Balance: measures mass (You weigh a mock rock using a balance to determine its mass.)

MATERIALS NEEDED 2 paper plates 2 mock rocks 1 set of measuring tools Colored pencils or crayons

MAKE YOUR OBSERVATIONS Carefully record all measurements. Make your drawings neat and precise.

Mock Rocks

Real Rocks

READ WRITTEN IN STONE

He Ain’t Nothing but a rock hound He’s nothing but a rock hound Diggin’ all the time He’s nothing but a rock hound Diggin’ all the time He ain’t never going to stop Sniffin out the minerals in a mine

TAKE MOCK ROCKS APART How can we determine the ingredients of rocks? Take your rock apart using your pick (nail) Group the ingredients Record results.

Vocabulary Minerals: one ingredient in the earth’s crust that can’t be broken down - minerals make up rocks Rocks: earth materials made up of different ingredients called minerals – rocks are made up of more than one mineral/ingredient

DO YOU THINK THE GRAY MATERIAL CAN BE SEPARATED ANY FURTHER. DISCUSS THIS WITH YOUR GROUP

MATERIALS 1 VIAL PER PAIR CUP OF WATER SYRINGE PAGE 5 OF NOTEBOOK

PROCEDURE Fill the vials one-third full with leftover gray material Add 25 ml of water to the vials Snap on the cap and hold it tightly while shaking for a few minutes. Observe the contents and draw a picture in the first vial outline. Record observations

REFLECTIONS How has water helped to separate the rock ingredient? What do you notice about the way the materials are beginning to settle? What do you think will happed if the vials settle overnight? Do you think there will be anything left in the water. What will you observe if the ingredient dissolves?

What is the difference in rocks and minerals? Rocks Made up of different ingredients Rocks can be broken down into different minerals. Minerals Made up of only one ingredient Minerals can’t be broken down any more.

Vocabulary Minerals: one ingredient in the earth’s crust that can’t be broken down - minerals make up rocks Rocks: earth materials made up of different ingredients called minerals – rocks are made up of more than one mineral/ingredient Property: something you can observe, such as size, color, shape, or texture Crystal: the solid form of a material that can be identified by its shape or pattern

OBSERVING CRYSTALS What happened to the liquid? Use the crystal identification sheet to identify more ingredients in the mock rock Crystals are a solid form of a material that can be identified by its characterist shape or pattern.

Rocks Science Content Rocks can be separated into their components Rocks exhibit a variety of properties, including shape, size, color, and texture. Water, setting, and evaporation can separate rocks into their components. Crystals form from evaporation of a saltwater mixture. Rocks are composed of earth materials called minerals that cannot be physically broken apart any further Rocks are made of ingredients called minerals.

Bibliography g&imgrefurl= &w=252&sz=62&hl=en&start=205&tbnid=PuW5MzTrBL62gM:&tbnh=123&tbnw=81&prev=/images%3Fq%3Dacid%2Br ain%26gbv%3D2%26ndsp%3D20%26hl%3Den%26safe%3Dactive%26sa%3DN%26start%3D200