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Understanding Atoms, Matter, and Energy Interactions

Explore the composition of atoms, states of matter, and energy transfer processes. Learn about expansion, contraction, conduction, convection, radiation, and different forms of energy.

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Understanding Atoms, Matter, and Energy Interactions

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  1. SCIENCEHeat and Energy2013 Chappell/Decker/Kamrar/McClain/Penney/Stout

  2. What are atoms made of?

  3. Protons - Neutrons - Electrons

  4. What are the three states of matter? • 1. _________________________ • 2. _________________________ • 3. _________________________

  5. Describe the particles in solid matter.

  6. Particles move very slowly and are packed closely together.

  7. Temperature and Phase Changes • When molecules move rapidly and farther apart, what is happening? • What is requires for a substance to change phases or states?

  8. ENERGY is added to the substance and it is expanding. The substance is heating up and most likely changing phase. A solid would become a liquid and a liquid would become a gas.

  9. Expansion and Contraction • What happens when heat is added to a substance? • What happens when the particles are cooled?

  10. When heat is added to a substance EXPANSION occurs. The particles speed up and begin to move apart because they are vibrating so vigorously. • When particles are cooled CONTRACTION occurs, the particles slow down and move closer together.

  11. CONDUCTION/CONVECTION/RADIATION • What is conduction? • What is convection? • What is radiation?

  12. Forms of Energy • Can you name them?

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