Drops on a Penny

http://goo.gl/Wn4cTn

Guidelines

• <File> <Make a copy ...>
• revise the name of this new file to include your full name
• ie. change from the default “Copy of 0 Master DRiVe Ex Design” to “Jane Smith DRiVe IOU”Ex Design
• Modify the template by
• Uploading your images - Insert Video link (youtube)
• modifying the colored sticky notes
• share the file for public viewing
• also share with rick.pardo@gmail.com

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Please include the following as appropriate:

• Replication Data table - showing repeated trials
• Inisights and tips for success with this activity
• Experimental data table with IV and DV
• Basic scientific explanation
• Grade, Big Idea
• Strand A, Strand Topic Name

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45 Drops

Water spilled off of penny

placed penny on paper towel

Scientist

Slowly squeezed pipette

filled pipette with water

Stopped when it displaced

Canadian

Tails Up

Pipette tip 2 cm above Penny

Event

Replicate Data

Number of Water Drops

Link to replicate spreadsheet

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Angle of Pipette

Size of Pipette

Temperature of Water

Size of hole at the Pipette tip

Person’s position over penny

Clean or dirty Penny

Number of Drops

Type of Coin

Type of Liquid

Side of Coin

Number of Drops on Penny

Temperature of Water

Squeezed Pipette slowly

Pipette tip 2 cm above Penny

Tails Up

Filled pipette with water

Canadian Penny

Experimental Data(chosen IV)

Number of Water Drops

Link to Temperature spreadsheet

Explain

Hot molecules are moving faster and are farther apart. Therefore the penny would hold fewer water drops.

Cold molecules are moving slower and are closer together (more compact). Therefore the penny would hold more water drops.

(Ref: The Particle Theory of Matter.)

Explain - continued

Cold molecules move

slower and are closer

together.

Hot molecules move

faster and are farther

apart.