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5th science review
5th grade science vocabulary
| Term | Definition |
|---|---|
| weather | the state of the atmosphere at a particular time and place |
| climate | the average weather of a location over a period of years |
| water cycle | the recycling of water between Earth's surface and atmosphere |
| precipitation | water that falls from the atmosphere as rain, snow, hail or sleet |
| cloud | a mass of tiny water droplets or ice crystals in the air |
| cold front | a place where a cold air mass bumps up against a warm air mass |
| meteorologist | a scientist who studies weather |
| warm front | a place where a warm air mass meets a colder air mass and slowly rises over it |
| low pressure | associated with lousy, rainy, cloudy, warm weather |
| high pressure | associated with clear, cool, nice weather |
| 3 ingredients for a Hurricane | low pressure, warm oceans, moist air |
| organism | a living thing |
| cell | the smallest part of a living thing that can carry out all the processes of life |
| system | a group of organs that work together |
| respiratory system | the body system that allows us to exchange gases with the air |
| digestive system | the body system that breaks down food so it can be used for energy |
| circulatory system | the transport system for blood, water and waste to and from our cells ( passes through the hearts and lungs) |
| skeletal system | the body system of bones that give the body structure and support |
| muscular system | the body system used to move the body (connected to bones) |
| nervous system | the body system that controls all the other body systems |
| trait | a quality or characteristic of a living thing |
| tissue | a group of cells that do a certain job |
| organ | a group of tissues that work together to do a big job for an organism |
| genes | the sets of instructions found inside every cell of each living thing |
| ecosystem | all the living and non living things in an area |
| estuary | a body of water in which freshwater from a river meets and mixes with salt water from the ocean; coastal areas |
| producer | a living thing that makes its own food through photosynthesis |
| consumer | a living thing that gets energy by eating other living things |
| decomposer | a living thing that gets energy by breaking down wastes and dead organisms and return their nutrients to the soil (mushroom,fungi, bacteria, worms) |
| scavenger | a living thing that eats leftover dead animals (vultures, flies) |
| food chain | a model that shows the path of energy as it flows from one living thing to the next |
| food web | a model that shows how several food chains connect together |
| energy pyramid | a diagram that shows how the amount of energy changes as it moves through a food chain or food web |
| predator | an animal that hunts other animals for food |
| prey | an animal that is hunted by other animals for food |
| abiotic factors | nonliving things such as sunlight, soil, rainfall, water and wind |
| biotic factors | living things such as bacteria, plants and animals |
| adaptations | a change by which a plant or animal becomes better suited to its environment |
| chemical change | a change in which one or more new types of matter form - irreversible (rusting,burning, cooking, spoiled food) |
| conduction | the transfer of thermal energy(heat) between things that are touching |
| conductor | a material through which heat can move easily |
| convection | the transfer of thermal energy (heat) by the movement of liquids or gases |
| energy | the ability to make things move or change force - a push or a pull |
| friction | a force that acts in the opposite direction between surfaces that touch each other, slowing it down |
| gravity | a force that pulls objects toward each other |
| insulator | a material that heat does not move through easily (wood, cork, cloth, plastics) |
| mass | the amount of matter that makes up an object |
| matter | anything that has mass and takes up space |
| momentum | the property that a moving object has due to its mass and its motion |
| motion | a change in an object's position |
| physical change | a change in which no new materials form - reversible (crumbling paper, melting ice, evaporating water) |
| state of matter | the form that matter has- such as solid, liquid or gas |
| weight | a measure of the pull of gravity on an object's mass |
Created by:
bbrinkley
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