Activity
TeachEngineering

Teach Engineering: Wet Pennies

For Teachers 6th - 8th
Students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. The three liquids are water, rubbing alcohol, and vegetable oil; because of their different surface...
Activity
TeachEngineering

Teach Engineering: Spring Away!

For Teachers 7th - 9th
This lab demonstrates Hooke's Law with the use of springs and masses. Students attempt to determine the proportionality constant, or k-value, for a spring. They do this by calculating the change in length of the spring as different...