4th Grade Vocabulary 99-108

99.  caverns—a large cave formed by groundwater dissolving limestone

100.  caves—an empty place under the ground, often with an opening in the side of a hill

101.  pillar—the joining of a stalactite and a stalagmite

102.  igneous—rocks that formed when magma or melted rock from deep inside the earth rises and cools

103.  limestone—sedimentary rock where most caves are formed

104.  metamorphic—rocks that change due to heat and pressure

105.  sedimentary—pieces of sand, clay and dirt that are pressed together to form layered rocks

106.  spelunking—exploring and/or mapping a cave

 

107.  stalactites—mineral growths that form on the ceilings of caves

 108.  stalagmites—mineral deposits that grows upward from the floor of a limestone cave

4th Grade--Vocabulary 85-98

85. canyon--a valley that is deep with very steep sides 86. cave--a large hole found in rock or underground 87. delta--land made up of soil that a river has carried and left at the place where the river flows into the sea 88. dune--hill of sand piled up by the wind 89. floodplain--low, flat land along a river that may be underwater during a flood 90. glacier--a huge, slow moving mass of ice 91. hill--a place that is higher than the ground around it but smaller than a mountain 92. island--a body of land surrounded on all sides by water 93. mountain range--a group of chain of mountains 94. sinkhole--large hole in ground formed when the roof of a cavern collaspe 95. spring--fresh water found underground and flows to the surface 96. stream--a small body of running water over the earth's surface 97. valley--the low land between hills 98. volcano--a hill or mountain formed when melted rock is forced through the earth's surface

5th Grade--Lesson 10 Vocabulary

1. Endangered species—a species that is in danger of becoming extinct 2. Extinct—no longer found living on Earth 3. Habitat—a place where a living thing is found naturally 4. Invasive species—a species that is not native to an ecosystem and harms the ecosystem 5. Pesticide—a chemical used to kill unwanted animals, or pests 6. Pollution—the release of a harmful substance into the environment 7. Threatened—likely to become and endangered species 8. Conservation—the careful management and usage of the environment 9. Environment—all the living and nonliving things surrounding an organism—a living thing 10. People—the number one reason every animal is endangered or extinct

5th Grade--Energy Vocabulary

1. Fluorescent—an efficient type of light bulb 2. Audit—to review or examine thoroughly 3. Efficient—make good use of; not wasteful 4. Energy—the ability to cause a change in matter 5. Geothermal—heat energy from inside the earth 6. Hydroelectric—form of electric energy we get from moving water 7. Incandescent—an electric lamp in which a wire is heated to glow and produce light 8. Radiometer—meter to detect and measure radiant energy 9. Solar—sources of power that come from light or the sun 10. Transformer—device that increases or decreases voltage in a power line

4th Grade--Review 3

1. Anatomy—the structure of a plant or animal or any of its parts. 2. Behavior—a living things reaction to its environment 3. Condition—state in which a person or thing is 4. Description—a statement in words that gives a picture or account of something 5. Era—a particular period in history 6. Evidence—the data used to draw a conclusion 7. Features—parts of an animal’s or person’s body 8. Fossil—prints or a trace of an animal in rock that lived many years ago 9. Fossilization—the making of a fossil 10. Habitats—the natural surroundings of a plant or animal 11. Natural—found in nature, not made by people 12. Observation—using your senses to gather data 13. Organisms—all kinds of living things 14. Species—a group of organisms that look alike and can mate 15. Trace—a mark left behind by someone or something

5th Grade Review 2 Vocabulary

1. Commensalism—a type of symbiosis in which one species benefits from the relationship, while the other is unaffected 2. Mutualism—a type of symbiosis in which both species benefit from the relationship 3. Parasitism—a type of symbiosis in which one species benefits from the relationship while the other is harmed 4. Symbiosis—a close relationship between two species 5. Food Web—a model that shows how energy moves from one organism to another in an ecosystem. It is made up of many food chains. 6. Food chain—a model that shows how energy moves from one organism to another in an ecosystem 7. Carnivore—a consumer that eats mainly other animals 8. Decomposer—an organism that gets energy by breaking down dead organisms or waste produced by living things 9. Herbivore—a consumer that eats mainly plants 10. Omnivore—a consumer that eats both plants and animals 11. Producer—an organism that used the energy from sunlight to produce its own food 12. Community—populations of different species living together in the same ecosystem 13. Population—a group of organisms of the same species that lives in a certain area 14. Species—a group of organisms that can mate with each other and produce offspring 15. Ecosystem-a system made up of all the living and nonliving things in an area

4th Grade Vocabulary 75-84

75. anatomy—the structure of a plant or animal or any of its parts 76. behavior—a living things reaction to its environment 77. condition—state in which a person or thing is 78. description—a statement in words that gives a picture or account of something 79. era—a particular period in history 80. evidence—the data used to draw a conclusion 81. external—having to do with the outside 82. features—parts of an animal’s body or person’s body 83. geologist—a scientist who studies the earth 84. organisms—all kinds of living things