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General Science.  The Earth’s Spheres Our planet formed 4.5 billion years ago. Since then, it has developed and modified four main physical environments that interact…

Technology Phage

1. PhageBy MacKenzie Miller and Sullivan Mann 2. What is a Bacteriophage? • A virus that parasitizes a bacterium by infecting it and reproducing inside it • Bacteriophage…

Education Social studies

1. 2. SOCIALSTUDIES 3. EARTH´S OCEANS 4. QUESTIONS…Salt in the oceans comes from rocks (F) Most from the salt is sodium chloride= table salt (T)Water pressure is the amount…

Education Social Studies

1. 2. SOCIALSTUDIES 3. EARTH´S OCEANS 4. QUESTIONS…Salt in the oceans comes from rocks (F) Most from the salt is sodium chloride= table salt (T)Water pressure is the amount…

Education 7th grade Ch. 1 Sec. 4 Sea-Floor Spreading

1. Ch. 1Sec. 4Sea-Floor Spreading 2. mid-ocean ridge longest mountain chain in world curves along ocean floor mapped usingsonar = device that bounces sound waves off underwater…

Science U4L1 - The Water Cycle

1. Unit 4 Lesson 1 The Water Cycle Copyright © Houghton Mifflin Harcourt Publishing Company 2. Unit 4 Lesson 1 The Water Cycle Indiana Standards Copyright © Houghton Mifflin…

Technology Introduction lesson

1. Introduction 2. Astronomy Meteorology Geology Oceanography 3. Astronomy- The study of objects beyond Earth’s atmosphere. Meteorology- The study of the air around our…

Education Astronomy notes 1: Notes on the history of Astronomy, Earth's seasons, moon's phases, and Earth's.....

1. Astronomy 1 ppt. by Robin D. Seamon 2. NOTE OUTLINE: 1.Historical Astronomers 2.Motion 3.Cycles: • Seasons • Moon phases • tides 3. FAMOUS ASTRONOMERS of the PAST…

Documents My solar system

1. The planets make up only 0.135 % of the mass in our solar system. The Sun dominates, accounting for 99.86 % of the entire solar system's mass. Did you know that…?…

Education Hard Water Stains and Water Usage Facts

1. Amazing Water Facts … and How Much Of It We Can Actually Use! 2. The Earth’s Oceans… The Earth's oceans cover about 140,500,000 square miles! They contain almost…