Year 8 Earth Science Properties of Rocks PDF

Daily Review The physical properties of an object describe its appearance. Physical properties could include its colour, shape, size or pattern. On your whiteboard, give two physical properties of each object below: 1 Propert...

Daily Review The physical properties of an object describe its appearance. Physical properties could include its colour, shape, size or pattern. On your whiteboard, give two physical properties of each object below: 1 Properties of Rocks Year 8 Earth Science 2  CFU earning What are we going ntention to learn about today? I will learn about the properties of rocks and minerals. Success Criteria I CAN: 1. Describe the physical properties of rocks using colours, layers, and air holes. 3 ctivate Prior nowledge Different types of rocks are used for different purposes. Think, Pair, Share: What are each of these common rocks used for in our everyday lives? Pumice Marble Limestone Coal 4  CFU 1 oncept Which property evelopment could be used to Properties of Rocks identify the Different types of rocks have different difference between obsidian and properties that geologists use to identify pumice? Explain your choice. them. Some common properties geologists use are: Colour Obsidian Layers Air holes Vocabulary property characteristic, feature or quality Pumice geologist scientist who studies rocks 5 oncept CFU 1 What gives rocks evelopment (1) Colour their colours? The colour of a rock is determined by the chemicals in the rock. Pure quartz is white in colour. Small amounts of other chemicals can change the colour of 1 the quartz. 3 Vocabulary property characteristic, feature or quality geologist scientist who studies 2 4 rocks 6  CFU 1 oncept How many layers evelopment can you see in the (2) Layers gneiss? Some rocks have layers of different colours CFU 2 What is different (e.g. gneiss). about the layers in the sandstone? Some rocks have layers of different sized grains (e.g. sandstone). Vocabulary property characteristic, feature or quality geologist Sandstone scientist who studies Gneiss rocks 7  CFU 1 oncept The three rocks evelopment shown are all made (3) Air Holes in the same way. Some rocks contain holes from gases in the Which one has: a. Large holes? rocks when they were formed. b. Small holes? c. No holes? The holes can be large, small, or not present CFU 2 at all. Which of the three rock samples had the largest gas bubbles? Explain your choice. Vocabulary property characteristic, Pumice Obsidian Scoria feature or quality geologist scientist who studies rocks 8  CFU 1 ill Development/Guided Practice What is its colour? 4 Steps for describing rocks CFU 2 Step 1: Describe its colour Does it have layers? Step 2: Describe any layers CFU 3 Are there holes Step 3: Identify if any holes are present? present Conglomerate is a variety of colours, but mostly grey and pale brown. It does not have layers. It does not have holes. Conglomerate 9  CFU 1 ill Development/Guided Practice What is its colour? 4 Steps for describing rocks CFU 2 Does it have layers? Step 1: Describe its colour CFU 3 Step 2: Describe any layers Are there holes Step 3: Identify if any holes are present? present Granite is white, black and pink. It does not have layers. It does not have holes. Granite 10  CFU 1 ill Development/Guided Practice What is its colour? 4 Steps for describing rocks CFU 2 Does it have layers? Step 1: Describe its colour CFU 3 Step 2: Describe any layers Are there holes Step 3: Identify if any holes are present? present Pumice is grey. It does not have layers. It has holes. Pumice 11  CFU 1 ill Development/Guided Practice What is its colour? 4 Steps for describing rocks CFU 2 Does it have layers? Step 1: Describe its colour CFU 3 Step 2: Describe any layers Are there holes Step 3: Identify if any holes are present? present Sandstone Sandstone is pale brown. It has layers. It does not have holes. 12 Relevanc e Being able to describe the properties of rocks will help you to identify rocks and understand how they were formed. The properties of a rock will affect what they are useful for. 13 Skill Closure What are three common properties of rocks that geologists use to identify them? Reminder Skill Steps for describing the properties of rocks Closure Step 1: Describe its colour Describe the properties of quartz. Step 2: Describe any layers Step 3: Identify if any holes are present 14  Complete the following in your Science ndependent notebook or on your device. ractice 1. Draw a table with 2 columns and 17 rows. In the first column, put the heading “Rock Name” and in the second column, put the heading “Properties” 2. Look at the pictures of the rocks on page 19 of the text book and describe the properties of each rock. 3. Answer the questions on page 19 of the textbook. 15