CoolStuff Blogs
Speed of Sound in Air
Speed of Sound in Air
In this lab students will measure the amount of time for a series of echoes, and calculate the time for one echo.
Refraction: Converging Lenses
Refraction: Converging Lenses
Students investigate images and colors formed by converging lenses using the Light Box & Optical Set, and discover the Focal Point created by light refraction.
Index of Refraction
Index of Refraction
Students will measure angles of incidence and refraction, and calculate the index of refraction of Plexiglas.
Law of Reflection of Light Pt. II
Law of Reflection of Light Pt. II
Students will observe objects through a periscope, draw ray diagrams to explain image formation, and engage with the laws of reflection and refraction.
Reflection and Refraction
Reflection and Refraction
Students will use ray tracing to predict the location and image characteristics for flat and curved mirrors.
Images Produced by Curved Mirrors
Images Produced by Curved Mirrors
Students make predictions, observations, and generalizations about the focal point of a mirror, depending on its curvature.
Law of Reflection of Light
Law of Reflection of Light
This activity is designed to help students "discover" that light reflected form a mirror's surface is reflected in a systematic, predictable way such that the angle of incidence is equal...
Color Addition and Subtraction
Color Addition and Subtraction
Students will engage with a color mixing projector to observe how colors combine and reflect.
The Fiber Optics Principle
The Fiber Optics Principle
Students will shine a colored laser through a glass of water and discern how optical fibers work.
What is a Magnet?
What is a Magnet?
Students will use a compass to observe the effects of a magnet and then create a temporary magnet to achieve the same effects.
Light a Bulb Inquiry
Light a Bulb Inquiry
This simple inquiry lab challenges students to light a mini bulb using only a battery and one short wire.
Electric Currents and Fields
Electric Currents and Fields
Students will observe that the magnetic field created by a coil of wire is perpendicular to the plane of the coil and adjust the strength and direction of the current.
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