"Ward's® Thermochemistry In The Bag Inquiry Demonstration Activities"

Major structures of a flower are shown in full detail on this economical model. Students can clearly see the calyx, corolla, androceium, stamens, and ovule.

Features one scoop end and one spatula end with knife edge. Perfect for a variety of laboratory uses.

Accessories for SmartDrop™ L, X and XF Spectrophotometer

Ideal for labs and classrooms in chemistry applications, these bottles are also great for storing, mixing, and dispensing essential oils.

Light wall rimless test tube for general use.

High quality, polished watch glasses for general lab use including preventing splashes, drying and evaporation.

ASTM Class B volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene snap cap, and blue or white enamel markings.

Vinyl Lined Extension Lab Clamp

Buchner filtering flasks are made of high quality, heavy duty borosilicate glass.

Medium grade, 180 grit. 9×11" sheets.

This colorful, graphically rich chart illustrates and summarizes what is now known about the history and fate of the universe.
Developed by scientists at the Lawrence Berkeley National Laboratory (Berkeley Lab) in collaboration with the Contemporary Physics Education Project (CPEP) and George Smoot, Nobel prize winner for 2006, the chart is crammed with information covering a broad range of cosmological topics.
The centerpiece is an evolutionary timeline that takes viewers from 10-44 seconds, when the universe was much smaller than a proton, to the current era, about 14 billion years later, when the visible universe contains 4 x 1011 billion galaxies.
Side panels provide short discussions on the birth, inflation and expansion of the universe, the cosmic microwave background and redshifts of distant supernovas.

A beautiful composite specimen of three well-preserved examples of the small pachyleurosaur reptile showing excellent skeletal definition. On a 8"×6³/₄" matrix. China.

Nets allow horizontal or vertical tows for plankton analysis.

Perfect Set for Introductory Chemistry Classroom

This durable clamp is made of powder-coated steel.

Nonsterile micropipette tips with 5,000 µl capacity.