Science

• Joseph Louis Gay-Lussac is a french chemist in the 18th century
• Gay-Lussac’s law is when the pressure of the gas is directly proportional to its temperature at a constant volume
• The variables present are Pressure and Temperature
• Direct relation of temperature and pressure
• General Equation: k=p/t
• k=proportionally constant
• p =pressure
• T = temperature
• When volume is constant this equation is used to compare different conditions on the same substance
• Beaker - cyndrical glass or plastic vessel used for holding, measuring, and mixing liquids in scientific experiments
• Erlen Meyer Flask - used to contain liquids and for mixing, heating, cooling, incubation, filtration, storage, and other, liquid handling process
• Alcohol lamp - heating, sterilization and combustion in a laboratory
• Test Tube - one of the most important apparatus as they are functional from storing to mixing reagents in any chemical or biological reactions
• Safety Goggles - protects the eyes from irritation and injury from chemicals and other harmful substances.
• Mortar and Pestle - used to prepare ingredients or substances by crushing and grinding them into a fine paste or powder
• Graduated Cylinder - to measure the volumes of liquids. It is not intended for mixing, stirring, heating or weighing
• Petri Dish - used to culture cells by providing storage space and preventing them form getting contaminated
• Stirring Rod - used to mix chemicals and liquids for reaction purposes
• Triple Beam Balance - used to measure masses very percisely
• Act responsibly and properly in the laboratory
• Handle all laboratory equipment properly
• Never taste or smell chemicals
• know emergency procedures
• Wear appropriate PPE
• Never leave containers of chemicals open
• tie back long hairs
• keep snacks out of the lab
• dispose waste properly
• Follow all procedures
• Physical Change - the material involve in the change is structurally the same before and after the change
• Chemical Change - the composition of a substance is changed, which requires the breaking and forming of chemical bonds during a chemical reaction
• Chemical Reaction - a process in which one or more substances are changed into new substances with different properties
• Change in color = Rotting Fruit
• Production of light

  Combustion = burning of wood

  Chemiluminescence = glow sticks

  Bioluminescence = fire fly
• Formation of precipitate = cheese
• evolution of gas