PPT-Time Zones What is a Time Zone?

A time zone is a region that has a standard time throughout it There are 24 times zones throughout the world Why do We Need Standard Time Before the late 1800s towns and cities would set their own times based on the sun. Chapter 3, Section 7. Date:. HW: PTG #1-8, pg. 332. Learning Objective:. Explain collisions in terms of Newton’s Laws, momentum, and impulse. Success Criteria:. Define impulse. Explain conservation of momentum. What . country lies at 0°, 20° E. ? . (Pg. RA22). a. Sudan. b. . Gabon. c. . Uganda. d. . Democratic . Republic of the Congo. . Last Night’s Homework. Please take out your homework from last night.. Day 13. Early Timekeeping. Before the invention of clocks, people marked the time of day using the sun. Many used a sundial to tell what time it was.. The sun is not at the same place in the sky at various locations around the world at the same time, so a sundial was not really practical.. Time Zones. Longitude Lines run east and west.. Time Zones run in the same direction as longitude lines.. Each color is a different Time Zone. Vocabulary. A. . time zone . is a region of the earth that has the same time. There are 24 time zones.. 7.3.spi.17. read and interpret a time zone map.. (Bloom’s Taxonomy level 6). Estimated Lesson Length: 1 day. Activating Strategy. Students will discuss with a partner why we see the Olympics at a different time then they do in London?. Longitude’s Role. Longitude plays the most important role in telling time. There are 360◦ of longitude (180◦ West and 180◦ East of Prime Meridian). Longitude lines are spaced 15◦ apart in both directions from the. Royal Observatory . Greenwich Mean Time (GMT). This is the universal time used for many things:. Air craft. Weather maps. Email. NASA Space Shuttles. This is the time at the prime meridian. Not affected by daylight savings . Ch. 4.2. Effect of Earth’s rotation. Created based on the rate at which the sun appears to move across the sky. Sun . rises . in the . east. & . sets. in the . west. Earth takes . 24 hours . to rotate on its axis . Rotation:. Rotation: is one complete turn around the Earth’s axis. Rotation causes day and night. Rotation. The earth rotates at a speed of 1000 miles per hour. It rotates from west to east. Earth's rotational axis points in the same direction relative to the stars, so that the North Pole points towards the star Polaris. Time Zones run in the same direction as longitude lines.. Each color is a different Time Zone. Vocabulary. A. . time zone . is a region of the earth that has the same time. There are 24 time zones.. Before the invention of clocks, people marked the time of day using the sun. Many used a sundial to tell what time it was.. The sun is not at the same place in the sky at various locations around the world at the same time, so a sundial was not really practical.. EARTH IN SPACE STUDY GUIDE 1.The path one object makes around another is called a(n) _______________. ORBIT 2. A complete journey around the sun revolution 3. Imaginary line between the North and South Poles on which the Earth rotates: Objective. Use . standard. time zones to . compare. times around the world.. Identify . eight. U.S. time . zones. .. Key Terms. solar noon: . time of day when the Sun is highest in the sky. . standard time: . particular zone. . Exercise Intensity A4. Heart Rate. Target Zones/Training thresholds. HR Max. Borg’s RPE Scale. Define Heart Rate and where can you measure it? . Pulse. : Carotid (neck) / Radial (wrist).