Search Results

Showing results (1 to 10 of 10)

• Pratt School of Engineering, Duke University
Learners display their findings after a study of surface area and volume. They build a mobile to show a commercially available box and a constructed cubical box of the same volume. Learners also...

1 cent - \$1 per student Ages 11 - 14 1 to 2 hours
• Pratt School of Engineering, Duke University
Learners determine the surface area and volume of two identical boxes, and then figure out the dimensions of a cubical box with the same volume. Then they construct a new, cube-shaped box from one...

1 cent - \$1 per student Ages 11 - 14 2 to 4 hours
• Pratt School of Engineering, Duke University
Learners construct and use a "real" 3D coordinate system out of balsa wood and foam core. They will then be able to locate coordinates in space. They will also be asked to find the...

\$1 - \$5 per group Ages 11 - 14 30 to 45 minutes
• Pratt School of Engineering, Duke University
Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio. Learners draw structurally sound...

\$5 - \$10 per group Ages 11 - 14 1 to 2 hours
• Pratt School of Engineering, Duke University
Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days. By weighing the gum before and after chewing, they can determine the amount of mass...

\$1 - \$5 per group Ages 11 - 14 2 to 4 hours
• Pratt School of Engineering, Duke University
Learners design their own experiment to determine conditions that either help or hinder the decomposition of carrots by soil microbes. They place carrots in plastic bags filled with soil (with or...

\$10 - \$20 per group Ages 11 - 14 1 to 4 weeks
• Pratt School of Engineering, Duke University
Learners initially test to see how many drops of liquid (water, rubbing alcohol, and vegetable oil) can fit on a penny. They then generate their own hypotheses to explain the results and design...

\$1 - \$5 per group Ages 11 - 14 10 to 30 minutes
• Pratt School of Engineering, Duke University
Historically, sea floor mapping (bathymetry) was done by soundings. Soundings are taken by dropping a weight with a pre-measured rope off the side of the boat and noting the measurement on the rope...

\$1 - \$5 per group Ages 11 - 14 2 to 4 hours
• Pratt School of Engineering, Duke University
Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles. They will also be introduced to the basic concepts of building...

\$5 - \$10 per group Ages 11 - 14 45 to 60 minutes
• Pratt School of Engineering, Duke University
Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor. The spring scale allows them to measure the frictional force that exists between the...

\$5 - \$10 per group Ages 11 - 14 45 to 60 minutes

Current filters

• Source Institution

• Pratt School of Engineering, Duke University (remove)