1. What are tectonic plates? ____ plates are large pieces of the Earth's outer layer, called the lithosphere, that fit together like a ____. These plates float and slowly move on top of the softer ____ beneath them, called the asthenosphere. 2. What are the causes for tectonic plate movement? Tectonic plates move because of heat and convection currents ____ the Earth. The heat from the Earth's core makes the molten rock in the mantle move in circular patterns, pushing and ____ the plates above it. 3. What consequences does tectonic plate movement have? The movement of tectonic plates ____ earthquakes, volcanic eruptions, mountain formation, and the creation of ocean trenches. These movements constantly change the shape and surface of our ____.

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