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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-000-000-003-755.jpg?itok=kYauaekx)
What is Light?
Source Institutions
In this four-part activity, learners will discover the exciting world of light--the most important form of energy in our world--and be able to identify and describe different types of light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-260.jpg?itok=QMGg2-GJ)
Lever Cowboy
Source Institutions
In this activity, learners build a figure that moves and "comes to life" when they pull its string.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-314.gif?itok=oQf7tzoW)
Carbon Dioxide Removal
Source Institutions
In this experiment using sprigs of Elodea, learners will observe a natural process that removes carbon dioxide (CO2) from Earth's atmosphere.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-557.png?itok=orkDaI86)
Supporting Structures
Source Institutions
In this activity about living things and gravity (page 5 of PDF), learners design and build an exoskeleton or an endoskeleton for an animal of their own invention.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-358.jpg?itok=cyjIlLUK)
Our Sense of Sight: Eye Anatomy and Function
Source Institutions
In this activity, learners investigate the sense of sight and develop and conduct their own experiments.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-288.png?itok=zeWJSTQH)
Seas in Motion
Source Institutions
In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-758.jpg?itok=ZGDzPylw)
Plankton Races
Source Institutions
In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-162.jpg?itok=oVUkgi9_)
Candy Chemosynthesis
Source Institutions
In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-210.png?itok=hbq5PeIA)
Is It Alive?
Source Institutions
What does it mean to be alive? Is a cactus alive? Is a seed alive? Is the air we breathe alive? What are the necessary characteristics?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-246.jpg?itok=P9ocDOKd)
Cranking Bird
Source Institutions
In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams.
Fish Eyes: More than Meets the Eye
Source Institutions
In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-055.png?itok=5hZuVYfK)
Size, Scale and Models
Source Institutions
In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-325.jpg?itok=Z52LHb9Q)
Oil Spill Cleanup
This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-311.jpg?itok=wm4MCnTf)
Off Base
Source Institutions
In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-555.png?itok=xFDa0CuX)
Round, Light and Hollow
Source Institutions
In this activity about bones (page 12 of PDF), learners investigate and compare the weight-bearing capacity of solid and hollow cylinders.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-010.png?itok=4wJeuA4m)
The Dead Zone: A Marine Horror Story
Source Institutions
In this environmental science and data analysis activity, learners work in groups to track a Dead Zone (decreased dissolved oxygen content of a body of water) using water quality data from the Nutrien