Chemical light sticks don't create heat or sparks when lit and are completely waterproof. Place one in warm water and one in cold water and observe the effect of temperature on the rates of chemical reactions. Non-toxic and safe for young children. Available in red, blue, or green. Please indicate color and quantity. Note: Our 6 in. red light sticks are true red.ABOUT TRUE RED LIGHT STICKS
Sometimes red chemical light sticks contain a glowing green liquid encapsulated within a red plastic tube. Educational Innovations is very excited to offer TRUE RED light sticks. These chemical light sticks contain a glowing RED LIQUID in a clear, colorless plastic tube.