8th Grade Science Semester 1 Exam Study Guide PDF

Semester 1 Exam Study Guide Dear Students, Please be informed that the upcoming Semester 1 Exam will cover the following topics: Topic 1: Atoms and the Periodic Table Topic 2: Chemical Reactions Topic 3: Forces and Motion The tables below provide details for each lesson, including learning obj...

Semester 1 Exam Study Guide Dear Students, Please be informed that the upcoming Semester 1 Exam will cover the following topics: Topic 1: Atoms and the Periodic Table Topic 2: Chemical Reactions Topic 3: Forces and Motion The tables below provide details for each lesson, including learning objectives and practice questions. Please refer to these tables for a comprehensive overview of our covered topics. Please note that the exam review week will be from January 12th to 16th, 2025. Topic Information Details Topic 1 Atoms and the Periodic Table Lesson 2: The Periodic Table Objective(s): I can locate elements on the periodic table and identify their properties. You need to do: ​ Read and review the lesson. You need to know: 1) Properties of protons, neutrons, and electrons. 2)Use the periodic table for locating information about elements: atomic number, atomic mass, element’s symbol, and the number of protons & electrons. 3)Groups and periods in the periodic table. Lessons 3 & 4: Types of Objectives: Bonding and the 1  Semester 1 Exam Study Guide Periodic Table ​ I can define valence electrons and explain their role in chemical bonding. ​ I can describe the properties of metals, nonmetals, and metalloids. You need to do: ​ Read and review the lesson and slides. You need to know: 1)Define and explain the role of valence electrons. 2)Describe, compare, and contrast the properties of metals, nonmetals, and metalloids. 3)Short Answers/ Critical Thinking Questions ​ What are the key differences between covalent and ionic bonds and compounds? ​ What are the similarities and differences between electron dot diagrams and electron energy level diagrams? Topic Information Details Topic 2 Chemical Reactions Lesson 1: Mixtures & Objectives: Solutions ​ I can define mixtures and solutions and give examples of each. You need to do: ​ Read and review the lesson and slides. You need to know: 1) Vocabulary- mixture, colloid, suspension, solution. Lesson 2: Chemical Objectives: Change I can conclude whether a change in matter is 2  Semester 1 Exam Study Guide physical or chemical by examining: the evidence of the formation of new substances with different properties. energy changes, such as heat, light, or sound release or absorption. You need to do: ​ Read and review the lesson and slides. You need to know: 1) Vocabulary -reactant, product, exothermic reaction, endothermic reaction 2) Identify Physical or Chemical Changes 3)Short Answers/ Critical Thinking Questions ​ How can you distinguish between a physical change and a chemical change based on their evidence? ​ Explain the role of energy changes in determining whether a reaction is exothermic or endothermic. Provide one example of each. Lesson 3: Modeling Objectives: Chemical Reactions ​ I can interpret models to break down a chemical reaction into reactants and products ​ I can compare and contrast synthesis, decomposition, and replacement reactions by analyzing their reactants and products. ​ I can use chemical equations to model mass conservation during a chemical change. You need to do: ​ Read and review the lesson and slides. You need to know: 1) Vocabulary - Law of conservation of mass 2) Recognize the types of chemical reactions. 3) Identify reactants and products in chemical 3  Semester 1 Exam Study Guide equations. 4) Short Answers/ Critical Thinking Question(s) Explain how the mass of reactants and products demonstrate the law of conservation. Topic Information Details Topic 3 Forces and Motion Lesson 1: Describing Objectives: Motion and Forces I can explain how balanced and unbalanced forces affect an object's motion, incorporating the concepts of reference points and relative motion You need to do: ​ Read and Review Slides Only You need to know: 1) Vocabulary - reference point, motion, net force 2) Applied forces - balanced/ unbalanced and net force 3) Short Answers/ Critical Thinking Questions ​ In terms of reference points, explain why is motion relative. Provide examples of an object in motion and not in motion. ​ How are contact forces different from non-contact forces? Give examples. Lesson 2: Speed, Objective: Velocity, and ​ I can use text evidence and real-life Acceleration examples to compare and contrast 4  Semester 1 Exam Study Guide speed, velocity, and acceleration. You need to do: ​ Read and Review Slides Only You need to know: 1) Vocabulary - speed, velocity, and acceleration 2) Short Answers/ Critical Thinking Questions In terms of speed, direction, and velocity give all the similarities and differences between two objects in motion. Lesson 3: Newton's Objective: Laws of Motion ​ I can define Newton's Laws of Motion and apply them in different real-life scenarios. You need to do: ​ Read and Review Slides Only You need to know: 1) Vocabulary - Newton’s Laws of Motion- Explain and Apply the Laws 2) Short Answers/ Critical Thinking Questions Analyze the difference between balanced forces and action-reaction forces and apply your understanding to real-life examples. END 5