1) an arrangement or structure with a group of parts that work together a) transparent b) system c) mean d) model 2) an arrangement/structure that lets both matter and energy cross its boundaries freely (e.g. a living tree) a) transparent b) condensation c) closed system d) open system 3) an arrangement/structure that allows energy to enter or leave, but not matter (e.g., a pot of boiling water with a tight lid)) a) closed system b) transmitted light c) control variable d) open system 4) process where a gas changes into a liquid a) evaporation b) system c) open system d) condensation 5) process where a liquid turns into a gas a) transparent b) opaque c) evaporation d) independent variable 6) a simple way to explain or predict how something works in nature a) transmitted light b) model c) variable d) opaque 7) the smallest part of a chemical substance, made up of two or more atoms joined together a) transmitted light b) independent variable c) model d) molecule 8) material that allows light to pass through easily a) closed system b) transparent c) dependent variable d) transmitted light 9) material that does not allow light to pass through it a) transmitted light b) model c) dependent variable d) opaque 10) light that bounces off the surface of an object a) transparent b) reflected light c) open system d) system 11) light that is generated or passes through a material without being absorbed or reflected a) transparent b) dependent variable c) opaque d) transmitted light 12) the part of a science experiment that can change or be changed a) transparent b) variable c) condensation d) reflected light 13) something in a science experiment that purposely stays the same a) system b) transmitted light c) control variable d) evaporation 14) something in a science experiment that you change to see what happens a) independent variable b) control variable c) reflected light d) condensation 15) something in a science experiment that you watch to see if it changes because of something you do a) dependent variable b) condensation c) transparent d) independent variable 16) a type of average where you add several numbers together and then divide them  a) control variable b) variable c) mean d) transmitted light

science terms (quiz edition) - EL - February 2025

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