Enjoy up to 8 hours of glow with this large 6 inch chemical glow light stick. It provides one of the brightest and long lasting light of any light stick available. Lanyard included! Learn about chemiluminescence as you create the glow. Light up a party, wear it as a necklace, bring it to a game, concert, sporting event, beach, park, or even use it for an emergency situation. Just snap the stick and shake it to release the colorful bright light. Safe, non-toxic and produces no heat, flames or sparks. The light stick remains cool to the touch and is a great way to show chemical reactions. Comes in 4 random assorted colors. What you'll get: 1 Glow Light-Stick in random assorted color. Incredible Science Fun Learning Ideas: Light sticks are a form of chemiluminescence which is what we call chemicals mixing together to form light. Have fun experimenting with the temperature effect on the light stick. Stick one in cold water and one in warm water and see the difference. Chemistry and science fun. Learn about chemiluminescence with a colorful display of light. Discuss other forms of light and learn why chemical light sticks don't give off any heat. It's literally a cool chemical reaction. The way a light stick works is when you snap the stick, you're breaking an invisible glass vial inside the larger tube. The large tube has a chemical that mixes with the new chemical that was released when the vial cracked. These chemicals mix together and produce a chemical reaction which gives off light.
