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Mercury in the Environment
Source Institutions
In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-357.gif?itok=blHTfrM_)
Our Sense of Sight: Color Vision
Source Institutions
In this activity, learners investigate color vision as well as plan and conduct their own experiments.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-497.png?itok=2ooHCdQc)
Fragile Waters
Source Institutions
In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-948.jpg?itok=xZYPMQEP)
Toxic Popcorn Design Challenge
Source Institutions
In this activity, learners explore the engineering design process (EDP)—the process engineers use to solve design challenges.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-966.jpg?itok=ww_83tdG)
Playing with Parachutes
Source Institutions
In this activity, learners explore how parachutes are used to slow down moving objects. Learners work in teams of "engineers" to design and build their own parachutes out of everyday items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-962.jpg?itok=5UtBQ9r9)
Shake it up with Seismographs!
Source Institutions
In this activity, learners explore the engineering behind seismographs and how technology has improved accurate recording of earthquakes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-275.jpg?itok=3UvJQYzJ)
Magnetic Marble Run
Source Institutions
Learners explore magnetism and motion as they build a simple marble run. Learners test different arrangements of plastic and cardboard tubes, bottles, and cups on a magnetic board.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-988.png?itok=VxXY5Kqd)
Build a Big Wheel
Source Institutions
In this activity, learners explore how engineers have developed big wheels or Ferris wheels.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-977.jpg?itok=WWx8NGoL)
Electric Messages: Then and Now
Source Institutions
In this activity, learners explore electronic communication, the Morse Code system, and advances all the way through text messaging. Learners build a simple circuit, send messages to one another.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-771.jpg?itok=hPGh-uZY)
Double Dutch Distractions
Source Institutions
This activity (page 2 of the PDF under SciGirls Activity: Double Dutch) is a full inquiry investigation into whether hearing or seeing has a bigger effect on jump rope performance.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-613.jpg?itok=m0wiaTy1)
Make Your Own Batteries!
Source Institutions
This activity (on page 3 of the PDF under GPS: Body Electricity Activity) is a full inquiry investigation into conductivity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-264.jpg?itok=Vzcbjb7d)
Full of Hot Air: Hot Air Balloon Building
Source Institutions
In this activity, learners create a model of a hot air balloon using tissue paper and a hairdryer. Educators can use this activity to introduce learners to density and its role in why things float.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-980.jpg?itok=jR2WC2ak)
Design and Build a Better Candy Bag
Source Institutions
In this activity, learners explore how product design differences can affect the success of a final product -- in this case a bag for holding candy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-053.jpg?itok=1OXoH-Ry)
Rubber Band Racers
Source Institutions
In this activity, learners explore the design of rubber band powered cars. Learners work in teams of "engineers" to design and build their own rubber band cars out of everyday items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-856.jpg?itok=aJwzwPXs)
Music and Sound
Source Institutions
This activity (on page 2 of the PDF under SciGirls Activity: Music and Sound) is a full inquiry investigation into sound frequency.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-979.jpg?itok=czOe9ajJ)
Dispenser Designs
Source Institutions
In this activity, learners explore how engineers work in a team to solve problems.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-459.gif?itok=UsTZvXn4)
Launch Altitude Tracker
Source Institutions
In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-119.png?itok=3RSjXAUm)
Going Green
Source Institutions
In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-959.jpg?itok=N1TqRw8n)
Smooth Operator
Source Institutions
In this activity, learners explore surgical instrument design. Teams of learners construct surgical instruments from everyday materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-964.jpg?itok=aCn8zTfF)
Rotational Equilibrium
Source Institutions
In this activity, learners explore the concept of rotational equilibrium. Learners work in teams to estimate and determine the force within a mobile design.