Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. Light & Color Laser Refraction Tank This self-contained unit allows students to measure and study refraction of light. The angle of incident and refractive rays are easily seen with the help of a built-in laser as its light source. The laser revolves around the circular graduated scale and can be set at any point. Students can easily observe light rays as they travel from air into water, water into air, and water into water. Includes leveling screws to level the water in the tank. Circular scale is 6-3/8" diameter. P2-7090 Laser Refraction Tank $79 Perfect for inquiry investigations of light and refraction. ▲ Add water up to the tank’s midline and create a surface that precisely transmits and reflects the laser beam for student observations. Detachable laser unit can be moved 360 degrees around the tank. Refraction Cups Fill these semicircular cells with different liquids to observe their refractive properties. Great for showing total internal reflection! P2-1230 Refraction Cup $2.25 12 or more $1.95 arborsci.com Excellent companion to our Light Box and Optical Set. Laser Ray Box Kit New Complete Optics Set uses 1, 3, or 5 Laser Beams! You’ll find more great lesson ideas for this kit by visiting our website! Perfect for inquiry investigations of light and refraction. The most complete, economical optics kit you’ll find! Look at everything you get: variable laser ray box, 8 different acrylic lenses, activity mat with printed scales and angles, and convenient hard-shell storage case to keep everything organized and ready to use. 3 mW Laser, includes power supply. P2-7680 New Laser Ray Box & Lenses $99 6 or more $92 Locate the object and its image to determine index of refraction. Phantom Crystals Plastic Mirrors Durable plastic mirrors have a multitude of uses. Use one to study basic reflection and plane mirror optics. Build a periscope with two. Our pack of three 1.625" x 9" mirrors makes any 2-inch mailing tube into a kaleidoscope! You can even build an array of mirrors and collect solar energy! P2-7141 P2-7142 P2-7143 8 What looks like a simple glass of plain water really contains dozens of soft crystals! The secret is carbon-based polymers that absorb up to 300 times their weight in water. Since Phantom Crystals are almost entirely made of water, light passes from water through the crystals without any refraction, rendering the crystals invisible! But bring the crystals into the air, and they’re easy to see. Includes full instructions. P6-2800 25g vial $4 6 or more $3.50 4" x 4" 5" x 7" 1.625" x 9" 3/pk. $1.75 $2.75 $5.50 1-800-367-6695