Habitats and communities
Videos
Learn about habitats and what living things need to survive.
Bizarre animal adaptations.
How humans change environments and habitats.
How animals change their habitats.
How lightbulbs are made and how they work.
Learn about light and optics.
Compare the brightness of different light sources using an oil spot photometer.
Learn about lenses and bending light as you build your own projector.
Learn about sound frequency and hearing.
Make sprinkles dance with vibrations caused by sound.
Make patterns with sound and salt.
Rocks, minerals, and erosion
Videos
Learn about weathering and erosion.
The three main types of rocks.
Break into geodes to find amazing crystals.