"Note+Boards"

Accurate and easy measurement of a solution's conductivity or its total ion concentration.

These activities are designed to meet exam requirements for the regents exam part D.

CAS Number: 140-66-9
Formula Weight: 206.33
Formula: (CH₃)₃CCH₂(CH₃)₂C₆H₄OH
Hazard Info: Corrosive
Density (g/mL): 0.912
Boiling Point (°C): 221.2
Freezing Point (°C): 101.5
Solubility: Water and Alcohol
Synonyms: p-tert-Octylphenol, 4-(tert-octyl) Phenol
Shelf Life (months): 36
Storage: White

CAS Number: 10035-06-0
Formula Weight: 485.1
Formula: Bi(NO₃)₃·5H₂O
Hazard Info: Oxidizer, Flammable, Irritant
Density (g/mL): 2.830
Boiling Point (°C): 80
Freezing Point (°C): 30
Solubility: Nitric Acid, Alcohol and Acetone
Synonyms: Bismuth(III) Nitrate 5-Hydrate, Bismuth Trinitrate, Bismuth Nitrate
Shelf Life (months): 12
Storage: Yellow

This investigation meets AP Science Practices 1, 3, 4, 5, 6, and 7.

An excellent model of blunt force trauma.

CAS Number: 1305-62-0
Formula Weight: 74.10
Formula: Ca(OH)₂
Hazard Info: Irritant, Corrosive
Density (g/mL): 2.24
Boiling Point (°C): as CaO 579
Freezing Point (°C): as CaO 2580
Solubility: Water, Glycerol, and Acids
Synonyms: Hydrated Lime, Slacked Lime, Caustic Lime, Calcium Hydrate
Shelf Life (months): 12
Storage: Green

For teens and adults alike, the Deluxe Handheld Digital Microscope is a fun, educational tool. It’s well suited for hobbyists, quality control inspectors, medical professionals, and scientific researchers.

Wipe away dust, dirt, fingerprints, and other particles on lenses to see clearly with the Celestron Lens Cleaning Kit.

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.

Goldie has a new look with an updated sound system! The highlight of this breath and heart sound (BHS) simulator is to allow students to perform auscultation, offering them opportunities to hear the different sounds from actual patients with a stethoscope.

Suited to a wide range of applications in education, quality control, environmental and clinical analysis.

Turns any existing traditional microscope with 23 or 30 mm eyepiece diameters into a digital microscope.

Real-world climate and sustainability investigations, powered by the popular BBC micro:bit!

A blunt force trauma set comprising six skull fragments from six individuals.

Trauma skull of a 39-year-old European American female, who died due to a shotgun wound to the head.