seeing atoms in action
DESCRIPTION
Seeing Atoms in Action. Middle School Lauren & Bobby . Objectives. Determine the behavior of atoms with temperature (MS-PS1-3) Visualize the movement of atoms Demonstrate the different properties of water (MS-LS1-3) Compare adhesion, cohesion, and capillary action (MS-LS2-3). - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/1.jpg)
Seeing Atoms in ActionMiddle SchoolLauren & Bobby
![Page 2: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/2.jpg)
Objectives•Determine the behavior of atoms with
temperature (MS-PS1-3)•Visualize the movement of atoms•Demonstrate the different properties of
water•(MS-LS1-3)•Compare adhesion, cohesion, and
capillary action (MS-LS2-3)
![Page 3: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/3.jpg)
Review: What is an Atom?•Smallest unit of an element•“If an apple was magnified to the size of
the Earth, then the atoms in the apple would be approximately the size of the original apple” (Feynman, 1995).
•Composed of protons, electrons, and neutrons
![Page 4: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/4.jpg)
Temperature•Influences the speed atoms travel•As temperature increases, the speed of
atoms increases•As temperature decreases, the speed of
atoms decreases
![Page 5: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/5.jpg)
TemperatureThink of a pot of boiling water
Question: What happens to the water when you turn up the heat on the stove? Why?
Image From Microsoft Clip Art
![Page 6: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/6.jpg)
Solid What is a solid?
Rigid structure Atoms are close together Little movement
Atoms
![Page 7: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/7.jpg)
Liquid•What is a liquid?
▫More movement of molecules▫Molecules are still close together, but can
slide▫Takes the shape of the container▫Definite volume
Image From Microsoft Clip Art
![Page 8: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/8.jpg)
Gas•What is a gas?
▫Constant movement of molecules▫Takes space of entire container▫No definite volume▫No definite shape
![Page 9: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/9.jpg)
Increasing Temperature (Heating)•Solid Liquid (Add heat)
▫Example: Melting butter in a saucepan•Liquid Gas (Add heat)
▫Example: Boiling water
http://www.abc.net.au/science/articles/2010/03/16/2840402.htm
![Page 10: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/10.jpg)
Decreasing Temperature (Cooling)•Gas Liquid (Cooling)
▫Condensation on the mirror after a shower•Liquid Solid (Cooling)
▫Making Jell-O
Solid Liquid Gas
Heat decreases
![Page 11: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/11.jpg)
Mini Lab
Image From Microsoft Clip Art
![Page 12: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/12.jpg)
Capillary Action
![Page 13: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/13.jpg)
Water•What does it mean to be adhesive?•What does it mean to be cohesive?
![Page 14: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/14.jpg)
Adhesion of Water•The ability of water to stick to another
surface•An example of adhesion is when a water
droplet sticks to the leaf of a tree
![Page 15: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/15.jpg)
Cohesion of water•Unique property that makes it possible for
water to stick to itself•Ex. Water droplet
![Page 16: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/16.jpg)
Surface tension•Contractive tendency of the surface of a
liquid that allows it to resist an external force (science.yourdictionary.com).
![Page 17: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/17.jpg)
Capillary Action•Is the ability of a liquid to flow in narrow
spaces without the assistance of, and in opposition to external forces like gravity. (science.yourdictionary.com)
•Both adhesion and cohesion allow for this to occur
•Ex. The xylem of wood plants is used to get water from the roots of the plant to the leaves. The way this is done is through capillary action.
![Page 18: Seeing Atoms in Action](https://reader036.vdocument.in/reader036/viewer/2022062301/56816191550346895dd12e96/html5/thumbnails/18.jpg)
Other examples of Capillary Action•Paint brush- to pick up paint•Cleaning up a spill with paper towels•Release tears from ducts of the eye