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Download Q4 Session Sheet 1:Properties of Matter Part 1
Transcript
Earth Science Properties of Matter Part 1 For this session you will need to switch courses in Discovery Education. To do that when you open the text book you see a title that states Earth and Space Science. Click switch course. Scroll down to Physical Science. Once in Physical Science course you then will expand all and use the file set for Properties of Matter. Vocabulary: Atom mass gravitation kilogram metric system neutron pure substance State of matter substance volume(matter) weight matter measure barometer density liquid gravity volume(sound) hardness condense Essential Questions: Mass: What is mass? What is the relationship between the mass of an object and gravity? What is the relationship between mass and weight? How does changing the shape of an object affect its mass? Volume: What is volume? How is the volume of a solid measured? How is the volume of a liquid measured? How is the volume of a gas measured? Density: What determines whether one substance will sink or float when it is placed in another substance? What is density and how is the density of a substance calculated? Please watch all the videos under ENGAGE for all the above categories: Density, Volume and Mass Mohs Hardness Scale: In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (1773-1839), who selected the ten minerals because they were common or readily available. The scale is not a linear scale, but somewhat arbitrary. Hardness Mineral Associations and Uses 1 Talc Talcum powder. 2 Gypsum Plaster of paris. Gypsum is formed when seawater evaporates from the Earth’s surface. 3 Calcite Limestone and most shells contain calcite. 4 Fluorite Fluorine from fluorite prevents tooth decay. 5 Apatite Apatite is a mineral in vertebrate bones and teeth. 6 Orthoclase Orthoclase is a feldspar, and in German, "feld" means "field". 7 Quartz Quartz is the most common mineral in the Earth's crust. 8 Topaz The November birthstone. Emerald and aquamarine are varieties of beryl with a hardness of 8. 9 Corundum Sapphire and ruby are varieties of corundum. Twice as hard as topaz. 10 Diamond Used in jewelry and cutting tools. Four times as hard as corundum. Hardness of some other items: 2.5 2.5–3 3 4-4.5 4-5 5.5 6-7 6.5 7+ >10 >10 Fingernail Gold, Silver Copper penny Platinum Iron Knife blade Glass Iron pyrite Hardened steel file Wurtzite Boron Nitride Lonsdaleite (Hexagonal Diamond)
