List three sources of Earth's internal heat. The amount of heating from radioactivity, estimated based on measurements of the composition of rock samples, is highly uncertain – accounting for anywhere from 25-90% of the total heat flow. The 3 main sources of heats are: The Sun is a heat source. Earth's Formation. Heat of the Sun: The Sun provides Earth with huge amounts of energy in the form of heat and light. What is heat? Heat cooks your food. Objectives: 1. 2.

These internal heat sources allow for Earth's continents to move, causing mountains to grow, rifts to deepen, and hot springs and volcanoes to emerge! Describe Earth's magnetic feild. 3.3 The Earth's internal heat.

Two Sources of Heat • 1.

You use more heat than any other kind of energy.

4. Things that make heat are called heat sources. Heat makes cars go. Even though the temperatures bellow are very high, and the water should be in the form of gas, water vapor, because of the immense pressure, it manages to stay in liquid form, and thus gets to the surface as scorching hot water. • A type of energy related to kinetic energy or movement of atoms • More/faster movement of atoms more heat 3. Earth's Interior Heat Notes 1. Key Terms: Describe Earth's size and shape and the arrangement of its layers. Earth’s Interior Heat 2. The occurrence of both volcanoes and hot springs shows that the Earth's interior is hot, producing molten rock at temperatures up to 1250 °C, and also superheated steam. The known sources of heat from the Earth’s interior are radioactive decays, and residual heat from when our planet was first formed. The water is hot because of the heat from the internal heat sources of the Earth. The main known sources of radioactivity within the Earth are unstable types of uranium, thorium and potassium – something we know based on … Earth's core. However, these phenomena are mainly confined to several narrow zones … 10. Residual Heat – thermal energy left over from the formation of Earth via bombardment and accretion 4. 3. Explain how most scientists explain the formation of our solar system. Without the Sun, life on Earth would .



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