![]() Ask students to describe how the cork moves as the waves change size. Put a cork in the pan to represent a boat on the ocean. 4,513 Best Ocean Waves Free Video Clip Downloads from the Videezy community. Tilt the pan in different directions and disturb the water in other ways to demonstrate how waves of different sizes are formed. (wind) Tell students that other things affect waves, too. 2,000+ Free Ocean Wave & Ocean Videos, HD & 4K Clips - Pixabay Resolution 2,088 Free videos of Ocean Wave Related Videos: ocean sea waves beach nature water coast sunset landscape wave Find a video of ocean wave to use in your next project. Ask: What do you think causes waves? Point out how choppy the waves in one of the photographs looks and challenge students to figure out why. If needed, prompt students with the following questions: Which is biggest? Which is tallest? Which is longest? Have them point to the correct photographs. Ask: How are these the same? How are they different? Students should point out differences such as size, height, and length. Show students the photographs and ask students to compare and contrast the waves. Show students photographs of ocean waves. Tell students that, in oceans, they can find waves all the way across the ocean-not just at beaches.ģ. As students identify each area, ask: Is the water’s surface flat? Does it have waves? Make sure they understand that waves are found in bodies of water of all sizes. Students should be able to point out oceans and lakes. Ask them to identify the areas that are covered with water. Show students the map of the world and a globe. Ask: Where can you find waves? Encourage students to think beyond the ocean with answers such as a lake, puddle, pool, sink, bathtub, and more. Activate students’ prior knowledge about waves.Īsk students if they’ve ever seen, felt, or made a wave. The National Weather Service office in San Diego has issued a high surf warning through 6 p.m. Sea waves hitting rocks Time-lapse of sea waves hitting rocks in the seashore at the beach. Sea waves reflecting the sunset Sea waves reflecting an orange sunset. on Thursday because of the danger posed by the high surf. Sea waves hitting in big rocks on the beach shore with a clear blue sky. Lifeguards closed the popular pier at 10:15 a.m. This is why the water carries you up or down the shoreline when you are at the beach.1. Video from Friday morning shows broken pieces of railing as waves crash over the pier. A Long shore current hits the shore at an angle and sand is moved. Avulsion: A sudden & rapid change in shorelineġ8 Coastline Features Erosion Accretion How are they different?ġ9 Wave action continuously changes the shape of the shorelineĦ. Erosion: Natural action of waves and current over a long period of time, sand is moved/transported. Coastal Terminology Accretion: A gradual deposition by water of mud, sand to form dry land. Plunging waves break when the shoreline slope is moderate Spilling waves break when the shoreline slope is gentle Surging Waves break when the shoreline slope is steepġ4 Spillers Crashing wave where there is a gentle slope.ġ5 Plungers Crashing wave where there is a moderate slope.ġ6 Surging Breakers Crashing wave where there is a very steep slope.ġ7 4. The type of breaker (wave) depends on the slope of the shoreline. Your Turn….answer the questions in your notesġ3 Types of Breakers 3. ![]() Waves break on the shore because they run out of room and all of their energy crashes in.ġ2 “Big Wave” Most ocean waves are caused by wind. When might you expect to see some really big waves?ġ1 Wave Transformation 1. Presentation on theme: "Ocean Waves."- Presentation transcript:Ħ Wave Characteristics Wave length (L) Wave height (H) Wave period (T)Ĩ Wind is the main source of most waves Stronger winds = bigger waves
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