Bell Work

Review from yesterday… SPI Can I describe and classify the physical properties of minerals? Silicate vs. Non-silicate Minerals KWL Chart…let’s add to the “L”!

Word Wall Crystalline Made of crystals

Word Wall Composition a product of combining ingredients.

WEIRD SCIENCE… How can you tell a real diamond from a fake? ◦ A gem specialist uses specialized tools to distinguish real diamonds from imposters. But there are some tests that even an untrained person can conduct. ◦ One of the simplest tests is to try to pick up the stone in question with a moistened fingertip. ◦ Diamonds can picked up this way; most other stones cannot.

Why? Engineers use rocks and minerals to create technologies. Minerals are all around us — in our kitchens and bathrooms and in our cars and bicycles. Today we will learn how geologists identify minerals so engineers have the appropriate materials to use to create their technologies.

Objectives SPI Can I describe and classify the physical properties of minerals? ◦ What is a mineral? ◦ Identification of minerals

7 Ways to Identify Minerals: 1. _________: can be used to identify minerals; however, the same mineral can come in a variety of colors. Challenge Question Is color the best way to identify a mineral? Why or why not? Color

7 Ways to Identify Minerals: 2. _________: the way a surface reflects light Types of Mineral Luster Metallic: bright, reflective Submetallic: dull, reflective Nonmetallic: vitreous (glassy), silky, resinous (plastic), waxy (greasy), pearly (creamy), earthy (rough) Challenge Question Is luster the best way to identify a mineral? Why or why not? Luster

7 Ways to Identify Minerals: 3. _________: the color of a mineral in powered form A mineral’s _________ can be found by rubbing the mineral against a piece of unglazed porcelain called a __________ _________. The mark left on the streak plate is called the __________. Challenge Question Is the mineral’s streak color the same as the color of the mineral? Why or why not? Streak streak streakplate streak

Each group member choose one of three identification methods we have taken notes on so far, and teach your other group members about this way to identify a mineral. Take turns and be good listeners! You have 2 minutes!

7 Ways to Identify Minerals: 4. _____________: different types of minerals break in different ways _________ is the tendency of some minerals to break along smooth, flat surface. _________ is the tendency of some minerals to break unevenly along curved, jagged, or irregular surface. Challenge Question What determines the way minerals break? Cleavage & Fracture Cleavage Fracture

7 Ways to Identify Minerals: 5. _____________: a minerals resistance to being scratched To determine the hardness of minerals, scientists use the ______________________. The _____________ the mineral’s resistance to being scratched, the ___________ the rating. Mohs Hardness Scale ranges from ___________ to _____________. Challenge Question What is the only mineral that can scratch a diamond? Hardness Mohs Hardness Scale greater higher 1 (softest) 10 (hardest)

7 Ways to Identify Minerals: 6. _____________: the measure of how much matter is in a given amount of space (volume) Formula for density: D = m (broken heart) Challenge Question What science tool would we use to measure the mass of the mineral? Volume? Density v

7 Ways to Identify Minerals: 7. _____________: characteristics about a mineral that only a few minerals have (or sometimes it is the only mineral that has that trait). Examples: Fluorescence Chemical Reaction Magnetism Taste Challenge Question How can you tell if a mineral has the property of fluorescence? Special properties

Candy Mineral Classification Look classification chart for minerals. With your group, develop a system for classifying candy “minerals” based on their observable physical properties.

Mobile Learning Labs Station #1: Color Station #2: Luster Station #3: Streak Station #4: Hardness Station #5: Cleavage/Fracture Station #6: Special Properties- Fluorescence Station #7: Formation of Minerals Station #8: Mining

Exit Ticket List three physical properties that can be used to classify minerals. Describe each of the property