This PowerPoint is only small part of my Water Unit that I offer on TpT ($9.99) –...

• This PowerPoint is only small part of my Water Unit that I offer on TpT ($9.99)– http://www.sciencepowerpoint.com/Water_Mol

ecule_Unit.html

– This unit includes a three part 1500 slide PowerPoint roadmap.

– 14 page bundled homework, modified version, 8 pages of lesson notes, review game, 25 video links, crosswords, rubrics, answer keys, readings, and much more.

• More Units Available at…

Earth Science: The Soil Science and Glaciers Unit, The Geology Topics Unit, The Astronomy Topics Unit, The Weather and Climate Unit, The Rivers and Water Quality Unit, The Water Molecule Unit.

Physical Science: The Laws of Motion and Machines Unit, The Atoms and Periodic Table Unit, The Matter, Energy, and the Environment Unit, and The Science Skills Unit

Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit, The Life Topics Unit, The Plant Unit, The Taxonomy and Classification Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology: Abiotic Factors, The Evolution and Natural Selection Unit and the Human Body Systems and Health Topics Unit.

• RED SLIDE: These are notes that are very important and should be recorded in your science journal.

-Nice neat notes that are legible and use indentations when appropriate.

-Example of indent.

-Skip a line between topics

-Example of indent.

-Skip a line between topics -Don’t skip pages

-Example of indent.

-Make visuals clear and well drawn.

-Example of indent.

-Make visuals clear and well drawn.

• RED SLIDE: These are notes that are very important and should be recorded in your science journal.

• BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly.

• Keep an eye out for “The-Owl” and raise your hand as soon as you see him.– He will be hiding somewhere in the slideshow

“Hoot, Hoot”“Good Luck!”

• Activity! • Draw the picture below. Use a Petri-Dish to

assist you. Label as “Before”.

• Activity! Swirly Milk, A fun starting off activity.– Fill the depression of the plate with whole milk.– Add one drop of different food colorings at 12, 3,

6, 9 O’clock of the plate.

• Swirly Milk Continued.– Draw the plate.– Take a toothpick and dip it into detergent.– Touch detergent (Dawn) on toothpick into the

middle of the milk.– Record your findings with a detailed drawing.

This product belongs to Ryan P. Murphy www.sciencepowerpoint.com Copyright

• Draw a “After” Sketch of the SWIRLY MILK . Use a Petri-dish to assist you.

• Questions! Swirly Milk.– What happened to the milk? Why?

• How Swirly Milk Works – When you introduce detergent to the milk, several

things happen at once.

• The detergent breaks the surface tension (skin on the top of the water)

• Food coloring is now free to flow through the milk.

• Detergent reacts with milk…Creates motion

• Detergent breaks up fat in milk pushes color around.

• Continues for awhile and then stops.

• The detergent breaks the surface tension (skin on the top of the water).

• Detergent reacts with milk…Creates motion• Detergent breaks up fat in milk pushes

color around.• Continues for awhile and then stops.

• Detergent reacts with milk…Creates motion• Detergent breaks up fat in milk pushes

• Detergent reacts with milk…Creates motion.• Detergent breaks up fat in milk pushes color

around.• Continues for awhile and then stops.

• Detergent reacts with milk…Creates motion.• Detergent breaks up fat in milk / pushes

New Area of Focus: Properties of Water.

Properties of Water: Water has unique properties because of it’s lopsided + and – ends.

Some water basics---

• Video Link (Optional) Water droplet in slow motion, some properties of water.– http://www.youtube.com/watch?v=vExvaDnlTSw

Water freezes at 0 degrees Celsius, and boils at 100 degrees.Water freezes at 32 degrees Fahrenheit

(F) and boils at 212 degrees F (Sea-Level)

• Water freezes at 0 degrees Celsius, and boils at 100 degrees.– Water freezes at 32 degrees Fahrenheit (F)

and boils at 212 degrees F (Sea-Level)

Water weighs 28.3 Kilograms per cubic foot.Weight: 62.416 pounds per cubic foot

at 32°F (It’s heavy).

Water weighs 28.3 Kilograms per cubic foot.Weight: 62.416 pounds per cubic foot at

32°F (It’s heavy).

• Water from your tap weighs the same as this water.

Density: 1 gram per cubic centimeter.

• Density: How much mass is contained in a given volume. We use grams/cm3

– (grams per cubic centimeter)

– Density = Mass divided by volume

MassD = ------------- = grams/cm3 Volume

• What is the density of this cube if it weighs 100 grams?

• 33 = 27 cm3

• D = M/V

• 33 = 27 cm3

• D = M/V• Mass = 100g

• What is the volume of this cube if it weighs 100 grams?

• 33 = 27 cm3

• D = M/V• Mass = 100g• 100g/27cm3

• What is the volume of this cube if it weighs 100 grams?

• 33 = 27 cm3

• D = M/V• Mass = 100g• 100g/27cm3

• D = 3.7 g/cm3

• Please determine the densities of the following characters. Who is most dense?

Donkey KongM = 15 gV = 30 cm3

YoshiM = 6gV = 8 cm3

MarioM = 8gV = 10cm3

GoombaM = 8gV = 6 cm3

Donkey Kong.5 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Donkey Kong..5 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

• Which one will sink in water?

Yoshi.75 g/cm3

Mario.8 g/cm3

Goomba1.3 g/cm3

What’s the Density of Wario? His Mass is 200g

1000 ml

500 ml

1000ml

1000 ml

500 ml

1000ml

1000 ml

1000 ml 1000ml

1000 ml

500 ml

1000 ml 1000ml

500ml500 ml

1000 ml 1000ml

500ml500 ml

1000 ml 1000ml

500ml500 ml

1000 ml 1000ml

500ml500 ml

What’s the Density of Wario? His Mass is 200g• Density = 200g / 250cm3

1000 ml 1000ml

500ml500 ml

What’s the Density of Wario? His Mass is 200g• Density = 200g / 250cm3 • Density = .8 g/cm3

1000 ml 1000ml

500ml500 ml

What’s the Density of Wario? His Mass is 200g• Density = 200g / 250cm3 • Density = .8 g/cm3

1000 ml 1000ml

500ml500 ml

• An object will float in water.– Density of less than one = float.– Density of more than one = sink.

• Which object from the tank below has a density of more than one g/cm3.

Water is H2O. Two hydrogen atoms, one oxygen.

• Please create a step by step drawing of the water molecule in your journal.

The Water Molecule

“The Oxygen (head) is

much larger than the hydrogen (ears).”

“What’s going on here?”

“Huh!”

“Ahhh!”

“Much Better!”

Structure: H20 (water) One oxygen bound by two hydrogen. Oxygen shares one electron with each

hydrogen atom.

Oxygen

hydrogen atom.

Oxygen

hydrogen atom.

Oxygen

HH Hydrogen

hydrogen atom.

Oxygen

HH Hydrogen

hydrogen atom.

Oxygen

HH Hydrogen

• Polar molecule: One end of the water molecule tends to have a positive charge while the other has a negative charge.

• Which molecule below is polar?

• Polar molecule: One end of the water molecule tends to have a positive charge while the other has a negative charge.

Non-polar (lipids) equal charge.

Or….

• Activity! Making a surface tension speed boat.– Break a popsicle stick in half and place a small

amount of detergent on the end.– Place on a plate of water.– You only get one shot at this so enjoy.

• Questions to speed boat.– Sketch your boat in your journal and describe

it’s journey.– Why do you think the boat moved around?

• You can now complete this question.

• Activity! Polarity of water and observing cohesion– Add one drop of water to wax paper and sketch

what it does.– Move the drop around.

• Which is polar, and which is non-polar?

Wax Paper

Water Droplets

Wax Paper = Non-Polar

Water Droplets Polar

Wax Paper = Non-Polar +/+

Wax Paper = Non-Polar -/-

Water Droplets Polar +/-

• What did the molecules attach to? Why?

Wax Paper

Water Droplets

• What did the molecules attach to? Why?– Answer: Because the water molecules are polar,

they attached to themselves and stayed in a drop. The wax paper is non-polar, so the water did not mix with it.

Water Droplets

• Many products use polarity to help waterproof materials.

• Activity Demonstration! Oil and Water don’t…________?– Add a few drops of vegetable oil to a clear Petri-

dish using an overhead projector.– Describe what happens?– What happens when two oil bubbles meet?

• Answer: When two (Non-polar) oil bubbles meet, they join together to form a large bubble.

• Add a few drops of food coloring to the mix.– How is the reaction different?– Is food coloring polar or non-polar?

• Where have we seen the picture below?

• Oil and water don’t mix.

• Oil and water don’t mix. An oil spill can cause severe damage to aquatic systems because of this property.

• This PowerPoint is only small part of my Water Unit that I offer on TpT ($9.99)– http://www.sciencepowerpoint.com/Water_Mol

ecule_Unit.html

– This unit includes a three part 1500 slide PowerPoint roadmap.

– 14 page bundled homework, modified version, 8 pages of lesson notes, review game, 25 video links, crosswords, rubrics, answer keys, readings, and much more.

• More Units Available at…

Earth Science: The Soil Science and Glaciers Unit, The Geology Topics Unit, The Astronomy Topics Unit, The Weather and Climate Unit, The Rivers and Water Quality Unit, The Water Molecule Unit.

Physical Science: The Laws of Motion and Machines Unit, The Atoms and Periodic Table Unit, The Matter, Energy, and the Environment Unit, and The Science Skills Unit

Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit, The Life Topics Unit, The Plant Unit, The Taxonomy and Classification Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology: Abiotic Factors, The Evolution and Natural Selection Unit and the Human Body Systems and Health Topics Unit.

This PowerPoint is only small part of my Water Unit that I offer on TpT ($9.99) –...

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