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Lessons 31 - 34

Science in the Beginning
Across
The part of soil that is produced by living things that have decomposed.
Two or more substances mingled together.
Rock that is formed when sedimentary or igneous rock is changed by the application of heat and/or pressure.
To break down into completely different molecules.
The process by which rocks are broken down and reformed throughout creation.
Down
(pertaining to a rock) Broken down by things that happen in nature.
The upper layer of earth in which plants grow.
A small opening or space.
Rock that has formed by the solidification of sediments, such as sand, silt, or clay.
Rock that has formed by the freezing of lava.