August 20th, 2014 Changes in State.

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Presentation transcript:

August 20th, 2014 Changes in State

Do Now Place your homework on your desk What happens when matter changes from a solid to a liquid? What is a physical property? What is the law of conservation of mass?

Test on Friday Hand out study guide and binder check Silently review these for 5 minutes With your table, write down any questions that you have and give me the piece of paper You can also email me with any questions about the binder or the test

Homework Section 2.1 What Is Matter Read pages 39-44 Answer questions on page 44

Objectives SWBAT describe the law of conservation of matter SWBAT describe the effects of temperature on matter Essential Question In the real world, there are many examples of both the law of conservation of matter, and the effects of temperature on matter. What are some examples and why is it important to understand these laws?

Demonstration What is happening to the ice? When the ice melts will it weight more? Less? Stay the same? Why?

Law of conservation of matter Mass cannot be created or destroyed

Demonstration One beaker is warm water One beaker is cooler water Food coloring is dropped in Observe for 1 minute What do you notice?

Change of State

Thermometer What is the element inside of a thermometer How does it work?

Answer the Essential Question In the real world, there are many examples of both the law of conservation of matter, and the effects of temperature on matter. What are some examples and why is it important to understand these laws?

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