percent change 49 videos

Freezing
Physics Heat Transfer and Change of Phase
How matter changes phase from liquid to solid.
freezing phase change 
Instantaneous Velocity
Physics Linear and Projectile Motion
How to find instantaneous velocity.
instantaneous velocity changes in distance change in time 
Empirical Formula  Molecular Formula
Chemistry Chemical Reactions
Understanding the differences between empirical and molecular formulas.
empirical formula molecular formula percent composition 
Definition of Slope
Algebra Linear Equations and Their Graphs
How to understand the idea of slope.
slope change ratio fraction 
Evaporation
Physics Heat Transfer and Change of Phase
Understanding the process of evaporation.
evaporation phase change 
Condensation
Physics Heat Transfer and Change of Phase
Understanding the process of condensation.
condensation phase change 
Acceleration
Physics Linear and Projectile Motion
Understanding the acceleration of an object.
acceleration rate of change velocity 
Average Velocity
Calculus The Derivative
How to compute the average velocity of an object moving in one dimension.
average velocity position height time change in position change in time 
Instantaneous Velocity
Calculus The Derivative
How to estimate the instantaneous velocity of an object at t=2 by computing average velocities over shorter and shorter intervals of time.
average velocity instantaneous velocity change in position change in time limits 
Electrolysis
Chemistry Electrochemistry
Understanding how electrical energy produces chemical changes.
electrolysis hydrolysis 
Transmutation
Chemistry Nuclear Chemistry
How radioactive elements change their identities through transmutation.
transmutation 
ACT PreAlgebra
ACT ACT Math
Short, helpful video on ACT prealgebra by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
Pre algebra order of operations percents proportions ratios mean median mode 
Finding the Slope of a Line from a Graph
Algebra Linear Equations and Their Graphs
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Finding the Slope of a Line from a Graph
Algebra 2 Graphs of Linear Equations
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Phase Diagrams
Chemistry KineticMolecular Theory
How to draw and interpret phase diagrams.
phase change diagrams pressure temperature sublimation 
The Method of Substitution
Calculus Antiderivatives and Differential Equations
How to evaluate an indefinite integral using the method of substitution.
antidifferentiation method of substitution change of variables derivatives differential