Monthly Archives: July 2015


Olympic Rings Chemistry Demonstration
Produce the colors of the Olympic rings in this easy chemistry color change demonstration. The colors of the Olympic Rings represent the colors of the flags of all the countries that participated in the 1912 Olympic Games. The Olympic Rings are blue, black, red, yellow, and green on a white […]

Olympic Rings Chemistry Demonstration


Green Ring Finger
Has a ring ever turned your finger green, black, red or some other color? Share your experience. What color did your finger turn? What type of ring were you wearing? Are there some types of rings that work better for you than others? You’re welcome to share your experiences… green […]

Has a Ring Ever Turned Your Finger Green?


Soft Contact Lens (Nieuw)
Have you ever wondered whether contact lenses glow or fluoresce under a black light? Here’s an interesting question from a reader: I have a friend who constantly loses a contact lens. I was wondering if I bought him a black light flashlight, if the light would help him find a […]

Do Contact Lenses Glow Under Black Light?



Crystal Starfish
Grow crystals on a starfish to make a sparkling crystal starfish ornament or decoration. Crystal Starfish Materials You can grow any crystal solution on the starfish, including borax, salt, alum, Epsom salt and sugar. Borax is nice because the crystals grow overnight and add a dainty sparkly appearance to the […]

Grow Crystals on a Starfish


Calico Cat
Did you know it can be dangerous to clean the litter box using bleach? The reason is because one of those lovely aromas that wafts from kitty’s litter box is ammonia. What is the last thing you want to mix with ammonia? That would be bleach. You are probably aware […]

Clean the Litter Box Safely


Blank Periodic Table
This printable periodic table is missing a few key parts. The cells are all present in the usual periodic table format. The group and period numbers are labelled and a nice solid line separates the metals from the metalloids and nonmetals. The missing elements are “left as an exercise for […]

Blank Periodic Table PDF



Find the perfect current periodic table from the periodic table 2015 collection. These tables are free to download and print as image or PDF files. Each of these tables uses the latest data available in 2015. I have collated all these tables in one place so you can quickly locate the […]

Periodic Table 2015 Collection



Periodic Table Wallpaper - The Works with Black Background
This color periodic table wallpaper has everything! (Except the names for 113, 115, 117, and 118, so there is a newer and updated version of this table.) Each cell contains the element’s atomic number, atomic mass, element symbol, name, electron shell populations by energy level, and electron configuration. The element […]

Periodic Table With Everything