"Freeze-Dried+Specimens"

Measures and records conductivity and temperature in streams, lakes and other freshwater sources. Recommended for monitoring aquifers for saltwater intrusion and road and agricultural run-off.

Enhance Your Lessons and Labs with Full Color Digital Images.

Examine anatomical differences based on diet.

The Smartphone Adapter DX Kit is a great first step into the world of astroimaging or digiscoping.

A cost-effective data logger for measuring salinity, conductivity and temperature in saltwater environments with relatively small changes in salinity (±5000 μS/cm).

For the collection, transport, archiving and isolation of nucleic acids at room temperature.

Introducing National Optical and Scientific Instruments line of digital compound microscopes with detachable 8" LCD tablet.

Add more cubelets to your STEM collection.

Expand Your Animal Skull Options

CAS Number: 7440-02-0
Formula Weight: 58.71
Formula: Ni
Density (g/mL): 8.90
Boiling Point (°C): 2732
Freezing Point (°C): 1452
Shelf Life (months): 36
Storage: Red

CAS Number: Mixture
Formula Weight: Mixture
Formula: Mixture
Density (g/mL): 8.45-8.86
Freezing Point (°C): 898-1064
Synonyms: Copper-zinc Alloy
Shelf Life (months): 36
Storage: Green

CAS Number: 7439-92-1
Formula Weight: 207.19
Formula: Pb
Hazard Info: Toxic
Density (g/mL): 11.34
Boiling Point (°C): 1753
Freezing Point (°C): 327
Solubility: Dilute Nitric Acid
Shelf Life (months): 36
Storage: Green

A low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of up to 13, 30 or 100 feet in a wide range of underwater environments, both freshwater and saltwater.