Down Quark
A tiny little point inside the Proton and Neutron, it is friends forever with the Up Quark. DOWN QUARK is also part of the Everyday Matter 6-pack and the Quark 6-pack.
Approximately 2 oz (57 gm); 3 inches (6 cm)across.
For ages 5 and up as it contains glued-on/small parts.
CATEGORY: QUARKS
UNIQUE PRODUCTS
