Planning a unit on simple machines? Save some time and energy with this collection of lessons and activities that explores how these devices are used in the real world to make life a little easier. 

Students investigate how to find the density of fluids and solids using math. Students also learn how to find the density of regular and irregular shaped objects.

Lars in Antarctica needs help. Can you help him with all the months of the year and with mass?

A comprehensive guide for learning all about mass with definitions, how to calculate mass, the difference between mass and weight, solved examples, and practice questions.

On this interactive site students learn to use various units of mass to solve problems and put objects in order by their mass.

[Free Registration/Login may be required to access all resource tools.] Convert metric units of length, mass, or capacity by multiplying by powers of ten.

[Free Registration/Login may be required to access all resource tools.] Choose the appropriate customary units of weight or capacity given various measurement situations.

Think about the relationships between weight and size of similar objects. This interactive exercise focuses on using critical thinking skills and estimation skills to predict how many mini and regular gummy bears it takes to have the...

This learning module discusses the definition of matter and what mass and volume measure. Module includes pictures, videos, and review questions.

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will begin to identify the seven base units of the International System of Units. They will understand the commonly used metric...

[Free Registration/Login may be required to access all resource tools.] Convert metric units of measurement.

Find out all about measurement in this test prep lesson exploring English and metric measurement. Students can compare metric and customary measurements using the conversion charts, assess how much they have learned using the interactive...

[Free Registration/Login may be required to access all resource tools.] Convert among metric units of measure using powers of 10.