SOLIDS, LIQUIDS, & GASES properties and changes in state at the molecular level TEACHERSSTUDENTS

Select one to begin: Audience Environment Objectives Indiana State Standards Teachers back

 Grade 10, High School Sophomores  No Chemistry background  Basic Scientific Knowledge Audience

SCI.C Describe physical and chemical changes at the molecular level. SCI.C Describe the characteristics of solids, liquids and gases and changes in state at the molecular level. Indiana State Standards

 Urban  Approximately 20 students per class  Technology & Computer Lab available  Individual Exercise Environment

1. Given a heating graph, students will be able to determine the boiling and melting points with 100% accuracy. 2. Given a cooling graph, students will be able to determine the freezing and condensation points with 100% accuracy Objectives Continued

3. Given pictures of phases, a student will be able to correctly identify each phase with 100% accuracy. 4. Given multiple options, students will be able to correctly identify the correct properties to each molecular phase with 100% accuracy Objectives continued

Buttons Next: This button will take you to the next slide of the section Back: This button will take you to the previous slide of the section Home: This button will take you to the main page containing each section to select from Assessment: Once you have gone through each section click this button to take you to the assessment for the section. There you will complete a short slide about the section

1. Differences in phase properties of molecules 2. How to read phase change graphs 3. How molecules physically undergo phase changes Through this program you will learn:

Solids, Liquids, & Gases  What are the states of matter & their properties? What are the states of matter & their properties?  How do molecules change states of matter? How do molecules change states of matter?  Final Quiz Final Quiz After each section these is a short assessment that must be completed to return to this page! Click any section to begin!

click one to begin What are the states of matter & their properties? Think you know it? Take the Assessment GasLiquidSolid

Gases are all around us Gas 1. The Atmosphere 2. Balloons 3. Oxygen tanks

 Take the shape and volume of the container  Have a low density Gas Gases fill the entire space they are placed in

 Gases are widely spread, thus have weak intermolecular bonds Gas Think: How can they bond if they are so far apart?

Gases have extremely weak bonds, thus move around freely Gas They have a high flow of molecules

Gas Wow! Now you know gases. Click the home button to go to the home page!

Liquids are all around us Liquid 1. Oceans2. Glass of Milk 3. Tube of Mercury

 Liquids conform to the shape of a container, but are limited by a surface area  Have a high density Liquid Both jars have the same amount of liquid This jar is thinner, thus the liquid rises higher Both have a defined surface area

 Liquids are condensed, thus have moderate intermolecular bonds which hold them together Liquid Think that liquids are close, and have something holding them together. Yet they can still move when you swirl a glass

Liquids have weak bonds, yet they are not strong enough to be rigid; thus, liquids have the ability to flow Liquid They have a moderate flow of molecules

Liquid Now you know about liquids! Click the home button to go to the home page!

Solids are all around us Solid 1. A Box2. A Pencil 3. A Chair

 Maintain their own shape  High densities  Highly condensed Solids When a solid is placed in a container it will maintain its original consistency

 Solids are highly condensed, thus have strong intermolecular bonds which hold them together in rigid structures Solids Think that solids don’t change their shape, and are “stuck” together.

Solids have strong bonds, thus do not flow very efficiently Solids They have a low/no flow of molecules

Solid Now you know all about solids! They should be a piece of cake! Click the home button to go to the home page!

Shape in a Container Flow of Molecules Intermolecular Bonds Gas Liquid Solid Assessment Fill in the chart below with the appropriate selections. Click on the correct term for the appropriate box. A star will appear for the correct answer, while an X will appear for the wrong answer CLICK TO TURN IN & CONTINUE

CLICK TO REVIEW THIS SECTION CLICK TO CONTINUE TO THE NEXT SECTION Congratulations on completing this section! Click one of the selections below to continue.

How do molecules change states of matter? Think you know it? Take the Assessment Cooling Heating GasLiquid Solid Click either the heating or cooling arrow to begin!

 When a molecule loses energy; caused by a lowering of temperature Cooling Ex: 75˚C 20˚C The C stands for Celsius temperature.

Cooling  Click to play the video on how to read a cooling graph

 In extreme situations a gas may skip becoming a liquid, and change straight to a solid state. This is called deposition Cooling

Brrrr! Now you have mastered cooling. Click the home button to go to the home page!

 When a molecule gains energy; caused by a increasing of temperature Heating Ex: 25˚C 80˚C The C stands for Celsius temperature.

Heating  Click to play the video on how to read a heating graph

 In extreme situations a solid may skip becoming a liquid, and change straight to a gas state. This is called sublimation Heating

Hot! Hot! Hot! Now you know all about heating. Click the home button to go to the home page.

Assessment Type in each interval associated with the term given (ex: A-B) 1. Melting Point: 2. Freezing Point: 3. Boiling Point: 4. Condensation Point: 5. Solid State: 6. Liquid State: 7. Gas State: CLICK TO TURN IN & CONTINUE

CLICK TO REVIEW THIS SECTION CLICK TO CONTINUE TO THE NEXT SECTION Congratulations on completing this section! Click one of the selections below to continue.