Science Class September 24 th, 2015

Warm Up.. Place your backpacks along the back wall Grab your notebook, pencil, agenda, and warm up sheet from the back counter Complete Thursday’s warm up now! DO NOT WORK AHEAD! REMEMBER YOU ARE QUIET IN YOUR SEAT WORKING WHEN THE FINAL BELL RINGS

Agenda… Review Thermometer Lab Review Foldable for 3 states of matter Review Molecules in Motion Lab Complete Frayer Diagram (definitions only) using Quizlet (technology) Trashketball!

Thermometer Lab Demo (block 1) Have you ever wondered how the liquid inside a thermometer moves! I will demo a thermometer in both ice cold water and hot boiling water Watch the liquid move!

Review our Thermometer Lab We investigated how a thermometer works But do we really understand how the liquid moves up and down inside the thermometer? Let’s see….

Back to our thermometer lab… Based on what you know about the way molecules move in hot liquids, explain why the liquid in the thermometer goes up when heated? When heated, the molecules of the red liquid inside the thermometer move faster. This causes the molecules to spread a little further apart. They have nowhere to go other than up the tube.

Back to our thermometer lab… Based on what you know about the way molecules move in colder liquids, explain why the red liquid in the thermometer goes down when place in ice, cold water? When the thermometer is placed in ice, cold water, the molecules slow down and their attractions bring them a little closer together bringing them down the tube.

Back to our thermometer lab… Why do you think the tube which contains the red liquid is so thin? The red liquid is contained in a very thin tube so that a small difference in the movement of the atoms within the liquid will be noticeable.

Back to our thermometer lab… Why does the thermometer have a larger outer tube? The large outer tube has two purposes—to protect the fragile inner tube and act as a magnifier to help you better see the red liquid.

States of Matter Foldable Review.. Can you answer these questions? RAISE YOUR HAND!!! In which state do the atoms have the most energy? GAS In which state are the atoms packed closest together? SOLID If you heat a solid you will eventually get a ? LIQUID If you remove heat from a liquid you will eventually get a ? SOLID

Gases Fact #1: Has no definite volume or definite shape Fact #2: If not contained, gases will spread out to fill the space Fact #3: If contained, they Will take the shape of their container. ComparingAll Three!!!

Review Molecules in Motion Lab… Think back to our lab…. In cold water we added yellow dye – How did the yellow dye move? SLOW In hot water we added red dye – How did the red dye move? FAST What do we know about how the molecules move?

Increases or Decreases? Heating a substance ______________ molecular motion. Cooling a substance _____________ molecular motion. As molecular motion increases, the space between the molecules ______________. As molecular motion decreases, the space between the molecules______________.

Frayer Vocabulary Completion I will return your vocabulary activity now You will soon get a chromebook and go to Quizlet to complete your definitions You may now get your chromebook using our classroom procedure Go to In search box type 6.P.2.2 States of Matter Complete only the DEFINITIONS part

Trashketball Review