Group Two

Will a Pepsi Float in Water?

Will a Diet Pepsi Float in Water?

Putting out Candle w/ Dense Gas

Mass measured in grams (g)A triple beam balance

or electronic scale

1 Kg= 2.20 pounds (lbs)

Nickel weighs 5 grams

How many kg does one student weigh?

VolumeVolume is like a

kid jumping into a pool: the water-level rises

Volume is the amount of space something takes up

Volume is measured in Liters

Read the bottom of the meniscus “curve”

Volume is taken in graduated cylinders (like this one)

morrisonlabs.com

Volume

Measure Volume

Solids cm³

Liquids mL

Density

Density = (mass/volume)

What are the units of density?

I Density

Density = m /v

DensityHaving less density

than the water keeps this boat afloat

Why does a life jacket prevent you from drowning?

geekologie.com

Percent Error

Percent error is a way of comparing the observed value to the accepted value

Formula for Percent Error

Percent Error

Students observed a density to be

The accepted value is

Example

Negative Sign?Percent Error = -6.17%The negative sign does not mean that the error was less than zero