Lab Equipment

Beaker Graduated Cylinder

Triple Beam Balance

Test tubes Pipettes

Water Lab

Cohesion The attraction of a molecule to itself

Adhesion Attraction of a molecule to another substance

pH Measure of how acidic or basic the substance is Scale is 1-14 1 strong acid 14 strongest base

pH Litmus or pH paper is used to identify the pH of a liquid Blue = Base Red = Acid

Polarity A partially charged substance. One side partially positive Other side partially negative

Polarity Opposite sides are attracted to one another Similar sides repel each other

Organic Molecules that contain carbon. All living or once living organism contain organic molecules (carbon). Water does not cause a reaction with organic material.

Chemical Reaction Substance is broken down or formed Burning a piece of paper

Physical Reaction A substance is physically changed Tearing a piece of paper

Solubility The ability of one substance to dissolve into another. The solute is the substance that is being dissolved. The solvent is the substance doing the dissolving

Density Measure of how tightly packed together a substance is Lead: very dense Styrofoam: Very light

Calculate Density Density = Mass of liquid / Volume of liquid D = 12g / 2ml D= 6g/ml