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