A dump truck loaded with gravel is driving up a hill. As it climbs, the driver slowly raises the bed to dump the load out the back. But instead of losing the gravel, the truck tips backward. Why?

Don't Be a Turkey! Avoid the embarrassment of a low score. Take the quiz and prove your engineering prowess.

You put a sealed pot of water on a hot stove. After a while, you hear no bubbling, and when you open the lid, the water is still not boiling—but it’s 105°C. How?

A Spooky Challenge for Engineers! Dare to face the fright of this month's quiz. Prove your engineering might and scare away the competition.

A cargo ship loaded with iron is floating in a harbor. A crane lifts the iron out of the ship and places it into the water beside it. Does the water level rise, fall, or stay the same?

Labor Day Challenge: Engineer vs. Undergrad! Celebrate the spirit of hard work and prove your engineering superiority. Take the quiz and show them who the real deal is.