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Physical Science

Semester Unit Review Guide

QuestionAnswer
Energy anything that can be turned into heat and measured as heat
Illuminate to make visible
Area of Ilumination surface area the light beam falls on
Opaque object that blocks light
Transparent lets light through
Filtered Light light that has passed through an object
Transmitted light that enters and passes through an object
Reflected light bounces off an object
Absorbed light that enters but does not leave an object
Prism three sided ogbject that breaks light into RoyGBiv
Spectrum band of colored light/RoyGBiv
RoyGBiv Red, orange, yellow, Green, Blue, indigo, violet
Spectroscope instrument used to examine light
Diffraction Grating lined plastic that breaks light
Model (scientific) “testable idea… created by the human mind that tells a story about what happens in nature.” Another definition is “a description of nature that can predict things about many similar situations.”
Pigments colored substance in a plant
Extraction removing the pigments from a leaf
Leaf Pigment Extract the green juice removed from the plant leave
Chromatography process of separating a substance
Solvent the substance that does the disolving
Sorbent the chromatography paper
Chromatogram the finished test
Chlorophyll The green pigment found in plants which allows plants to absorb energy from light. (Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion; poor absorber of green light.)
Light Gradient to control the amount of light reaching plants (used mesh)
Biomass the amount of matter in a living organism
Calorimeter instrument used to meausre calories
Created by: MrsGreenwood
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