Exploratorium
Bird in the Cage
When your life science class is learning about the eye and how it works, you can add this activity as a demonstration of how the retina holds an afterimage. After staring at a red, green, or blue bird shape, pupils glance at a cage and...
National Nanotechnology Infrastructure Network
The Micro and Macro World Around Us
Don't let your eyes play tricks on you ... use scale to keep your eyes in check! Young scholars observe images without scale and try to identify the structure. Then, they look at the same image with a scale bar and assess whether their...
Clean Up Australia
Why are Batteries Harmful to the Environment?
Open this lesson by reading together about primary and secondary batteries (such as nickel-cadmium cells), problems they can cause in the environment, and how humans can minimize the damage. Afterward, little ones examine a collection of...
PBS
The Egg
The first stage in the butterfly's life cycle is the egg. Young entomologists discuss why different butterflies lay different eggs and what their eggs look like. Then they use the handouts to make a replica of one type of butterfly egg...
National Nanotechnology Infrastructure Network
Scale Models
With instructions to adapt the activities for any grade K-12, any teacher can incorporate the concept of scale into the classroom with a simple, yet effective lesson.