"water bath"

Give your fish a place to play!

Improper pH can cause your fish stress and lead to disease. You can treat up to 944 gallons of fresh water.

Get Superior Performance from Unobtrusive Devices

Keep A Living Food Source For Other Organisms In The Lab

Sarracenia purpurea var. Dicot. This plant’s unusual hollow, red-and-green pitcher-shaped leaves are used to trap insects for the plant’s food. The leaves hold water in which trapped insects drown and decompose; the leaves absorb the nutrients from the decomposed insects. It is native to acidic bogs in temperate regions, although some species are found in tropical areas. It prefers acidic conditions in terrariums and comes supplied in a pot with care instructions. Size: 4–6".

Riker mount of biotic indicators for display.

Bring a pond inside your classroom. This comprehensive collection features a variety of organisms commonly found in a freshwater pond. Using the variety of specimens in this single jar, your students can discover the fascinating diversity of life that exists in a typical small body of water.
Includes algae, Protozoa, Hydra, Planaria, Daphnia and other common organisms.

Teach students that all insects aren’t bad.

The Universal Specific Gravity Kit is designed to be used with any electronic scale with a minimum capacity of 15 grams and a tare (re-zeroing) function to easily measure the specific gravity of gemstones and minerals.
Just weigh the stone "in air" on the integrated weighing platform of the scale, then without changing the setup, weigh the stone in water by placing it in the underwater weighing pan of the gem holder suspended above the platform. Plug the two values into the specific gravity equation and obtain the specific gravity of your stone.

Includes: lightweight gem holder support and underwater weighing pan, independent, spill-resistant, adjustable beaker support, beaker for filling with water - 100ml capacity, aluminum test weight, stainless steel tweezers, instructions, reproducible Specific Gravity worksheet, table of 300 common minerals/gems sorted by SG, with 6 other properties, including refractive index.

Note: shown with Boreal Balance - not included.

Salvinia rotundifola. This floating water fern has paired oblong leaves that are covered with hairs on both sides. The top part of the leaves are green, the underside purple. Salvinia was originally native to South America and has been introduced in the United States. It is adapted to ponds, pools, and marshes. It is supplied in a 4 oz. jar with care instructions. Note: Not available in Canada.

Anodonta subobicularis.

Drosophila melanogaster, the common fruit fly, is widely used in genetic studies. They express a number of mutations such as eye, wing, and body mutations.

The genius of nature, adapted into everyday products.

Ideal tool for aquatic ecosystem studies. Collect periphyton samples with ease using this specialized sampler, perfect for water quality and aquatic ecosystem studies.

Invasive species are organisms found outside their native range. When these foreign species are introduced into new ecosystems the results can be dramatic as they displace native species and cause problems that the native system cannot adapt to.

Riker mount of aquatic insects.