"WardsSci000474"

Provide every student in your class with their own slice of time. Each cross section measures 3 1/2” to 4 1/2” in diameter and features clearly delineated rings.

Six inch clear plastic protractor for measuring 180° in 1° divisions for both left and right opening angles.

Six inch, clear plastic circular protractor for measuring 360° in 1° divisions. It has a beveled edge and a cutout center.

Place these eggs in a brine solution for two days in order to make the shrimp (Artemia) hatch. Our special processing technique allows you to store the eggs for nearly indefinite periods of time. 7 grams.

Keep Students’ Interest in the Water Cycle from Evaporating

Dehydrated Preserved

Is your aquarium missing that “natural” feel? This colorful assortment of shells is ideal for turning any fish tank into a realistic environment. Package of 30.

These unbreakable polypropylene beakers feature a tri-cornered lip for dripless pouring.

Clear polyethylene storage bags lock shut when edges are sealed together.

Glass lenses mounted on metal frames with bakelite handles.