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Words at Work

Dive into the world of geometry with this guide to perimeter, diameter, and rotation. Learn how these concepts relate to spheres, circles, and cylindrical shapes. Discover the significance of diagrams and diagrams in understanding complex structures. Expand your knowledge of geometry and spatial reasoning with this comprehensive resource.

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Words at Work

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  1. Words at Work • 7th grade Unit 8

  2. Dia- across/through • diagram-a simplified drawing showing the appearance, structure, or workings of something; a schematic representation • diameter-a straight line passing from side to side through the center of a body or figure, esp. a circle or sphere. • diaspora- Jews living outside Israel.

  3. Dia- across/through • dilate-make or become wider, larger, or more open • diagonal-joining two opposite corners of a square, rectangle, or other straight-sided shape

  4. Peri- around • perimeter-the continuous line forming the boundary of a closed geometric figure • periscope-an apparatus consisting of a tube attached to a set of mirrors or prisms, by which an observer (typically in a submerged submarine or behind a high obstacle) can see things that are otherwise out of sight.

  5. Peri- around • periosteum-a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints • peripheral- of, relating to, or situated on the edge or periphery of something

  6. Sphere- around • spherical- shaped like a sphere. • sphere- a round solid figure, or its surface, with every point on its surface equidistant from its center. • hemisphere- a half of a sphere.

  7. Sphere- around • atmosphere- the envelope of gases surrounding the earth or another planet • biosphere- the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.

  8. Volve- turn • involve- (of a situation or event) include (something) as a necessary part or result • revolve-move in a circle on a central axis • revolution-a forcible overthrow of a government or social order in favor of a new system

  9. Volve- turn • volcano-a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are or have been erupted from the earth's crust. • evolve-develop gradually, esp. from a simple to a more complex form

  10. Rot- turn • rotunda-a round building or room, esp. one with a dome. • rotate-move in a circle around an axis or center • rotation-the action of rotating around an axis or center • rotor-a rotary part of a machine or vehicle, in particular

  11. Cycl/Orb- roundness • cyclical-occurring in cycles; regularly repeated • cylinder-a solid geometric figure with straight parallel sides and a circular or oval section. • -

  12. Cycl/Orb • orbit-the curved path of a celestial object or spacecraft around a star, planet, or moon, esp. a periodic elliptical revolution. • cyclone-a system of winds rotating inward to an area of low atmospheric pressure, with a counterclockwise (northern hemisphere) or clockwise (southern hemisphere) circulation; a depression.

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