Rocks & Minerals-3 rd grade Photos courtesy of Google Images

A person who studies the planet earth is called a…. geologist

The study of earth materials is called….

…means a material like salt or alum disappears in water when it is stirred.

This sugar is _____________ in the water. dissolving

Water disappears into the air. When water evaporates from a solution of salt and water, only salt crystals will be left behind.

When water disappears into the air, it is called…….

These are……

Rocks have properties. Properties are characteristics that can be observed and described. To look at To tell about

Rocks have the following properties: Color: describe the color Texture: how it feels Size: how big or small it is Luster: shiny or dull? Hardness: Need to complete the scratch test to determine if it is hard or soft.

Color: Texture: Size: Luster: Hardness: Light brown shiny (since I can’t feel it, I’m guessing smooth with sharp edges. Small like a ping-pong ball I can’t scratch it, but I’m guessing hard. What properties might a geologist use to describe this rock?

What properties might a geologist use to describe these rocks? Color: Texture: Size: Luster: Hardness: Charcoal gray dull (since I can’t feel it, I’m guessing smooth with sharp edges. Large boulders I can’t scratch it, but I’m guessing hard.

Earth material composed of different minerals is a…..

A rock ingredient that can NOT be broken down into smaller pieces is called a …….

Fiery rocks made from lava.

Rocks changed from wind, pressure or chemicals

Sand, pebbles and bits of shells that sit untouched and form into layers.

Sedimentary, Metamorphic or Igneous?

Pebble, rock or boulder? pebbles rocks boulders

These are all……

When measuring rocks, geologists use these terms: Circumeference: distance around an object Diameter: distance across circular object Depth: how thick an object is

When measuring rocks, geologists use these terms: Circumeference: distance around an object Diameter: distance across circular object Depth: how thick an object is

This shows

This shows how thick the mattress is, so they are measuring the…..

Measuring across a circular shape is measuring the …….