Earth Materials Mock Rocks Lynn Garner and Lori

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 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 • www. fossweb. com • http: //images. google. com/imgres? imgurl=http: //www. dec. ny. gov/images/environmentdec_images/1656 acidrainstone. jp g&imgrefurl=http: //www. dec. ny. gov/environmentdec/18654. html&usg=__Lv 0 W 6 Rps. Lodme. Rp. Vd. AErcb. OJYSA=&h=384 &w=252&sz=62&hl=en&start=205&tbnid=Pu. W 5 Mz. Tr. BL 62 g. M: &tbnh=123&tbnw=81&prev=/images%3 Fq%3 Dacid%2 Br ain%26 gbv%3 D 2%26 ndsp%3 D 20%26 hl%3 Den%26 safe%3 Dactive%26 sa%3 DN%26 start%3 D 200 • http: //www. windows. ucar. edu/earth/Atmosphere/images/acidrain_sm. jpg •