How does this work? What key words will we need to answer this? Clip

temperature dissipated equilibrium flow energy Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Hot coffee Ice cold milkshake Using as many of the words below as you can, write a paragraph to describe what will happen to each drink over a period of time. cooler hotter thermal temperature dissipated equilibrium flow energy

Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Energy Flow Thermal (heat) energy always flows from a hotter area to a cooler one. Therefore, thermal energy will flow into the cold drink from its warmer surroundings, while thermal energy will be dissipated from the hot water to the cooler surroundings. Eventually, both drinks will reach room temperature. At this point there will be no flow of thermal energy, because there is no temperature difference. Therefore, we can say that the system ( the drinks, containers, table and surrounding air) is in thermal equilibrium. Ask can they think of any uses for this knowledge

Describe the changes of states Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled.

States of Matter Solid Gas Liquid Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. States of Matter Gas Solid Liquid

States of Matter Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. States of Matter Solid Liquid Gas e.g. ________ e.g. ___________ Have a f_______ shape, do not flow Can flow and take the s______ of container _____ the container they are put in Difficult to c_________ Easy to c________ P________ close together and f______ in place. Particles close together but can m______ around Particles _____ to move in any and all directions

Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Kinetic Theory Whether a substance is a solid, liquid or gas is based on how the particles within are arranged. The idea that all things are made up of tiny vibrating atoms and molecules is called kinetic theory. Solid Liquid Gas

States of Matter Solid Gas Liquid Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. States of Matter Gas Solid Liquid All substances can be described using the kinetic model which uses states of matter. Some substances fit a mixture of states – e.g. smoke is a gas with solid particles held within it. These substances are known as emulsions. All substances have the ability to move between these states. How can they do this?

States of Matter Solid Gas Liquid Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. States of Matter Gas Liquid Solid Particles in a solid are the least energetic, liquids slightly more energetic and gases have the most energy.

Temperature Solid at high temp Solid at low temp Solid at low temp Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Temperature Temperature is a measure of the average kinetic energy of particles (measured in degrees Celsius). The faster they are moving the higher the temperature will be. In a solid particles cannot move around, so what do they do when they got hot? Solid at low temp Solid at low temp Solid at high temp

What happens to the Eiffel Tower in Summer? Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. What happens to the Eiffel Tower in Summer?

Expansion and Contraction Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Expansion and Contraction All materials expand as they become warm because the particles gain extra kinetic (vibration) energy. This extra energy means they push harder against the container and cause it to expand. In a solid this change in very small but in gases it can be noticeable to the eye. Gas at low temp Gas at high temp

Use the idea of kinetic theory to explain how a thermometer works? Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Use the idea of kinetic theory to explain how a thermometer works? Write your answer using as many of these key words;

Use the idea of kinetic theory to explain how a thermometer works? Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Use the idea of kinetic theory to explain how a thermometer works?

Temperature (degrees C) Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Cooling Curve Sketch the shape you would expect to see for the temperature of a hot cup of coffee over one hour. Temperature (degrees C) Time (minutes)

Heat The standard international (SI) unit of energy is Joules (J) Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Heat A direct measurement of how much energy all particles have. Add up their energies rather than finding an average. The standard international (SI) unit of energy is Joules (J)

A swimming pool of water Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Heat... OR Temperature... Which of the following has the most heat, and which has the least heat? An ice lolly A swimming pool of water Your body A boiling kettle A radiator The body of an elephant An iceberg

Explain why spilt coffee cools down faster then when it is in a mug? Learning Objectives By the end of this lesson you should be able to… Explain the differences between solids, liquids and gases in terms of kinetic theory. Describe the changes of states Explain contraction and expansion of materials when heated or cooled. Explain why spilt coffee cools down faster then when it is in a mug? Explain why large ears help elephants lose heat fast?