The Living Seas

Unit Review Sheet

Facts and Definitions

Lesson 1: Fresh Water

• Know the definitions of salt water, fresh water, estuary, glacier.
• Fresh water is the water we drink and use to wash.
• Most fresh water is found in glaciers, ice caps, and groundwater.
• A food web is a diagram that shows the various plants and animals that organisms in a habitat eat.

Lesson 2: The Water Cycle

• Precipitation is water falling to the earth in the form of rain, snow, sleet, etc.
• Infiltration is when precipitation seeps into the ground.
• Evaporation is the process by which the Sun heats water on the surface of the earth and turns it to water vapor.
• Water vapor is the gas state of water that has evaporated from the earth.
• Transpiration occurs when plants give off water vapor through the tiny holes in their leaves.
• Condensation is the process of water changing from a gas (water vapor) to a liquid.

Lesson 3: Oceans and Seas

• Know the definitions of ocean, oceanographer, sea, gulf.
• Only about 3/10 of the surface of the Earth is land; the remaining 7/10 is water.
• The Earth's oceans are the Pacific, Atlantic, Indian, Antarctic, and Arctic.
• Seas are typically smaller than oceans, but the terms "sea" and "ocean" are often used interchangeably.

Lesson 4: Ocean Life

• Know the definitions of vertebrate and invertebrate.
• Vertebrates can be divided into these groups: fish, amphibians, reptiles, birds, and mammals.
• Fish are cold-blooded, live in water, and are covered with scales.
• Amphibians are cold-blooded, and live part of their lives in water and part on land.
• Reptiles are cold-blooded, have lungs and dry skin, and are usually covered with scales.
• Birds are warm-blooded, have feathers, and lay hard-shelled eggs.
• Mammals are warm-blooded, have hair or fur, give birth to live young, and produce milk for their young.
• Invertebrates can be divided into these groups: cnidarians, echinoderms, mollusks, and arthropods.
• Cnidarians have stinging cells.
• Echinoderms have spiny skin.
• Mollusks have soft bodies.
• Arthropods have jointed legs (includes insects, arachnids, and crustaceans).

Lesson 5: Waves and Currents

• Know the definitions of wave, tsunami, current.

Lesson 6: Beaches

• Know the definition of tide, weathering, and erosion.
• Tides occur when one side of the earth is facing the moon, and the moon is pulling the ocean toward it, causing it to bulge.

Lesson 7: Water and Weather

• Know the definition of plankton.
• El Niño is an unusually warm ocean and air above the ocean that occurs every few years around the Christmas season.
• A hurricane is a tropical cyclone that forms over the ocean.
• Hurricanes can cause violent winds, torrential rain, and incredible waves.

Lesson 8: Treasures of the Sea

• A food chain is a series of plants and animals linked together because each is a source of food for the next one on the chain.

Final Project: Presenting…The Ocean

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