Mass, Volume & Density (Unit 1, Day 2)
This property tells you how much mass is packed into a given volume.
Density
The variable you change on purpose, plotted on the x-axis.
The independent variable
Roughly this percent of the ESS Regents is constructed response — the part you write yourself.
40%
Earth's four compositional layers, in order from the outside in.
Crust, mantle, outer core, inner core
2015 film where Matt Damon is stranded on Mars and grows potatoes to survive.
The Martian
Water's density — the number that decides whether an object floats or sinks.
1.0 g/cm³
Roughly this fraction of your data points should fall above a line of best fit.
Half
The booklet you're handed on the Regents, which we use the 2026 Revised Edition of all year.
The Reference Tables
The only one of Earth's layers that is liquid.
The outer core
1997 James Cameron blockbuster about a ship sunk by an iceberg.
Titanic
A rock has a mass of 60.0 g and a volume of 20.0 cm³. This is its density.
3.0 g/cm³
Estimating a value that falls between your measured data points.
Interpolation
In a CER answer, this is the part students leave out most often.
The reasoning
These waves travel only through solids, which is how we know the outer core is liquid.
S-waves
2015 disaster film where Dwayne Johnson survives a massive quake on California's most famous fault.
San Andreas
On a graph of mass versus volume, the slope of the line equals this.
The density of the material
Every axis on a graph needs a label and one of these.
A unit
The passage, map, table or graph that a whole group of Regents questions is built on.
The stimulus
Earth's rigid outer shell — the crust plus the uppermost mantle.
The lithosphere
2014 Christopher Nolan film where astronauts travel through a wormhole and time slows near a black hole.
Interstellar
Cut a sample in half and its mass and volume both shrink. This is what happens to its density.
Nothing — it stays exactly the same
This calculation tells you how far a measured value is from the accepted value, as a percent.
Percent deviation
A goal a solution must achieve is a criterion. This is a limit it must work within, like cost or time.
A constraint
The name for dense material sinking toward the center while early Earth was still molten.
Differentiation
2004 film where a sudden superstorm freezes the Northern Hemisphere in a matter of days.
The Day After Tomorrow