First Semester Exam. First Semester Exam Review 38 questions 70 points total Class work, Homework, Quiz = 80% Exam = 20% First semester = 50% total grade.

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Presentation transcript:

First Semester Exam

First Semester Exam Review 38 questions 70 points total Class work, Homework, Quiz = 80% Exam = 20% First semester = 50% total grade

First Semester Exam Review Flash cards Calculator Study buddy Science notebook Science textbook Laptop

Topics Chapter 1 Mass and Volume Chapter 2Mass change in a closed system Chapter 3Characteristic Properties

Chapter 1Volume Review: Standard shaped objects: (cubes and cylinders) Review Units of measurements: Review: Meters, Centimeters, Cubic Centimeter Review: Lab 1.1 Heating Baking Soda Review :Lab 1.4 (Displacement of water) Sand/Air Review: Volume of an odd shaped object (displacement of water)

Chapter 1Mass Review: Mass and Gravity Review: Units of measurements: Grams and Kilograms Review: Mass of a solid, liquid, and gas Review: Combining, adding, and subtracting mass

Chapter 2Mass change in a closed system Review: The mass of dissolved salt Lab 2.1 Review: The mass of ice and water Lab 2.4 Review: The mass of copper and sulfur Lab 2.5 Review: The mass of a gas Lab 2.6

The Law of conservation of mass/matter The law of conservation of mass/matter states that the mass of a system of substances is constant, regardless of the processes acting inside the system. An equivalent statement is that matter changes form, but cannot be created or destroyed.

Characteristics properties of a substance: Density, Melting/Freezing point, Boiling point Examples of characteristics of an object: Color, Volume, Mass, Texture Density of a Solid = Mass/Volume (g/cm3) Density of a Liquid = Mass/Volume (g/cm3) Density of a Gas = Mass/Volume (g/cm3) Chapter 3Characteristics Properties

Melting is the process of heating a solid substance to a point (called melting point) where it turns liquid. An object, which has melted, is molten. Freezing is the opposite of melting; it is the process of turning a liquid to a solid. Freezing point is the same temperature as the melting point.. Chapter 3Characteristics Properties

Boiling Point is when the temperature plateau’s (temperature remains the same over a period of time) Examples Tops plateau’s at 83oC and BHT plateau’s at 70 oC, Isopropanol plateau’s at 85oC The greater the volume the greater the time required to find the substance boiling point, however the boiling point remains the same. Ratio is double the volume double the time. Chapter 3Characteristics Properties

Review: The Density of solids Lab 3.5 Review: The Density of liquids Lab 3.6 Review: The Density of gas Lab 3.7 Review: Freezing and Melting Point Lab 3.9 TOP/BHT Review: Boiling Point Lab 3.11 Review: Change of State Chapter 3Characteristics Properties

Review: Scientific method Review: Purpose, Procedure, Materials, Diagram, and Conclusion Density of Gas Density Salt Other Topics