Earth Science Unit Overview: Chapter 4 – Earth’s Water Lesson 1 – Earth: The Blue Planet Lesson 2 – The Water Cycle Lesson 3 – Fresh Water Resources Lesson 4 – California’s Water Supply Chapter 5 – Earth’s Weather Lesson 1 – Earth’s Atmosphere Lesson 2 – Air Current and Wind Lesson 3 – Ocean’s and Air Temperature Lesson 4 – Severe Weather Lesson 5 – Predicting Weather Chapter 6 – The Solar System Lesson 1 – The Sun Lesson 2 – The Structure of the Solar System Lesson 3 – Gravity and Orbit

1) What do we already know? Severe Weather Lesson Overview: 1) What do we already know? 2) Vocabulary 3) Drawings 4) Main Ideas 5) Review Earth’s Weather: Lesson 4

Severe Weather What do we already know? BrainPOP Teaser Page 1 Severe Weather What do we already know? BrainPOP Teaser How do oceans affect temperature on land? a) Ocean’s cool off the land during summer and warm it up during winter. What are ocean currents? a) Moving water in the ocean 3) What causes El nino? a) Warm water warms the air near the coast. 3) Food Chain Earth’s Weather: Lesson 4

Severe Weather: Vocabulary Part I Page 2 Severe Weather: Vocabulary Part I 1) Air mass: a large region of air that has a similar temperature and hunidity. 2) front: The meeting place where two air masses meet. 3) Thunderstorm (Brainpop): a rainstorm that includes thunder and lightning 4) tornado: a rotating, funnel shaped cloud with extremely high winds. Earth’s Weather: Lesson 4

Severe Weather: Vocabulary Part II Page 3 Severe Weather: Vocabulary Part II 5) Low pressure closure: an area of low pressure surrounded by an area of high pressure. 6) hurricane: a very large, swirling storm with very low pressure at its center and widn speeds higher than 73 mph. 7) Storm surge: a bulge of water created by an area of very low pressure in the ocean. 8) Cyclone: a storm with a low pressure closure and a circular pattern of winds. 9) Monsoon (Brainpop): a seasonal wind usually associated with heavy rains. Earth’s Weather: Lesson 4

Severe Weather: Drawings (pg. 265) Page 4 Severe Weather: Drawings (pg. 265) Warm Front Cold Front Earth’s Weather: Lesson 4

Severe Weather: Drawings (pg. 266) Page 5 Severe Weather: Drawings (pg. 266) Earth’s Weather: Lesson 4

Severe Weather: Drawings (pg. 267) Page 6 Severe Weather: Drawings (pg. 267) Earth’s Weather: Lesson 4

Severe Weather: Main Ideas Page 7 Severe Weather: Main Ideas What causes severe weather? (pg. 264-265) a) When warm and cold fronts come together, warm air gets pushed upward and forms clouds. Quick Check (pg. 265) -Critical Thinking: How can you tell a front is passing through your area? a) You can feel the change in temp. and breeze. Earth’s Weather: Lesson 4

Severe Weather: Main Ideas Page 8 Severe Weather: Main Ideas 2) What causes thunderstorms? (pg. 266-267) a) See Main Idea question 1. Quick Check (pg. 267) -Critical thinking: How is the production of thunder similar to the “pop” produced by a pricked balloon? a) Earth’s Weather: Lesson 4

Severe Weather: Main Ideas Page 9 Severe Weather: Main Ideas 3) What are tornadoes? (pg. 268) a) See Vocabulary Quick Check (pg. 269) -Cause and Effect: What causes winds to rotate in a tornado? a) Remember Mr.P.’s drawing (on website). Earth’s Weather: Lesson 4

Severe Weather: Main Ideas Page 10 Severe Weather: Main Ideas 4) What are hurricanes? (pg. 270-271) a) See vocabulary Quick Check (pg. 271) -Cause and Effect: What causes the size of hurricanes to increase? a) The hurricane draws other storms into it making the hurricane even bigger (bathtub analogy) Earth’s Weather: Lesson 4

Severe Weather: Main Ideas Page 11 Severe Weather: Main Ideas 5) What are other forms of severe weather? (pg. 272) a) Flooding, monsoon, fog Quick Check (pg. 272) -Cause and Effect: What causes ground fog to form? a) When evaporated water meets cold air near the surface and condenses. Earth’s Weather: Lesson 4

Severe Weather: Review Page 12 Severe Weather: Review Summarize the main ideas Click to Watch! Think, Talk, and Write Earth’s Weather: Lesson 4