Like Dissolves Like - Experiment E - Step 2 of 3
Second step of experiment E of "Like Dissolves Like"
physical properties
Viscosity of Liquids - Hexane
The relative viscosity of hexane can be measured using a stopwatch, and compared to other liquids.
Hardness of Solid Substances - Grinding Lead
Lead is a relatively soft metal that can be flattened.
Like Dissolves Like - Experiment E - Step 3 of 3
Third step of experiment E of "Like Dissolves Like"
Heavy Water Ice Cubes - Deuterium Oxide
An ice cube of deuterium oxide (containing a heavier isotope of hydrogen) sinks in water.
Heavy Water Ice Cubes - Comparison 1
A normal ice cube is less dense than liquid water, but a deuterium oxide ice cube is more dense than liquid water.
Heavy Water Ice Cubes - Comparison 2
An H2O ice cube is less dense than liquid water, but a D2O ice cube is more dense than liquid water.
Floating Squares - Introduction
Introduction to the floating squares demonstration shows the preparation of the square of paper rubbed with graphite on one side.
Floating Squares - Carbon Tetrachloride and Water
A paper square rubbed with graphite on one side is placed at the interface between two immiscible liquids (carbon tetrachloride and water).
Plastic Sulfur - Part 1 of 5
At room temperature sulfur is a yellow solid.