Matching Pairs Waves, Currents & TidesOnline version 5th Grade Science Unit by Julie Copeland 1 Crest 2 Wind 3 What are tides? 4 How often do tides occur? 5 What are estuaries? 6 What causes surface currents? 7 What are inlets? 8 What is a barrier island? 9 Current 10 Wave 11 Trough The lowest part of the wave The cause of most waves to form This occurs about twice a day. The movement of Earth and the force and direction of wind. Pieces of land surrounded by water on all sides that protect the mainland. Flowing streams of water that move along a curved path through the ocean in a specific direction Water-filled spaces between barrier islands The regular rise and fall of the waters in oceans and seas. The repeated movement of water up and down The area where a river meets the ocean The highest part of a wave
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