A set of 10 pH Buffer Powder packets. Includes 5 pH 4.00 packets and 5 pH 6.86 packets. These are used to calibrate pH meters, and can also be used to monitor pH levels in aquariums or swimming pools.
This illuminated orbiter is great for demonstrations in the astronomy classroom!
Build over 60 projects with this deluxe version of the Snap Rover kit!
Infiniview comes with a 3.5" LCD screen and rechargeable Lithium Ion battery that will last up to 2 hours in the field.
Create all kinds of marble run combinations with this 80-piece Marble Run set!
Build a model green house and 9 other green energy-related devices with this great kit!
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!