Conservation of Mass
Fourth graders observe a chemical reaction, determine that a gas has mass, and confirm the law of conservation of mass and energy. They balance a chemical equation and explain that mass is conserved in all reactions
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Ecology And the Conservation of Natural Resources
Students study Alfred Wegener's theory of continental drift and how the continents were connected in one large land mass called Pangaea. They examine plate tectonics and the theory that the earth's surface is composed of large moving...
3rd - 5th Science