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Lesson 6. Observing the Fiddler Crab more closely. Materials. Record sheet 6-A: Observing the Fiddler Crab Record sheet 6-B: Drawing the Fiddler Crab Record Sheet 4-A: Observing the Frog Hand lens Crab placed in plastic cup with lid Sheet of My Habitat. Overview.
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Lesson 6 Observing the Fiddler Crab more closely
Materials • Record sheet 6-A: Observing the Fiddler Crab • Record sheet 6-B: Drawing the Fiddler Crab • Record Sheet 4-A: Observing the Frog • Hand lens • Crab placed in plastic cup with lid • Sheet of My Habitat
Overview • Observe, describe, and record the characteristics of the fiddler crab in words and drawings
Background • Crabs are more active after school hours. • Zoologists try either to observe them at other times or to look for evidence that certain behaviors have taken place. • Example: May not observe them eating but since the food was moved, mashed, or disappeared, you can assume that they ate it.
Record observations, discoveries, and questions in notebook. • What body parts do you see the crab using on land and in water? • Share • Draw a picture of the crab in its habitat.
Extensions • View a video about life in a salt marsh or mangrove swamp. • Locate local salt marshes and other wetlands on a map of the United States. Are fiddler crabs indigenous to that area? • People often think crabs resemble spiders. Research spiders and compare them with crabs. • Hermit crabs are popular pets. Research these crabs and compare them with fiddler crabs. Why are fiddlers not as popular pets?