The Joy of Chemistry Maggie Kelty

Working in the Laboratory

The Scientists Who Work in Lab!

What is Chemistry? Atom - Smallest unit of matter composed of protons, neutrons and electrons

What Types of Atoms are There? content/uploads/2015/01/Periodic -Table-Color.png

How do Atoms of Elements Combine? Atom - Smallest unit of matter composed of protons, neutrons and electrons Molecule - Structure made of multiple atoms that are connected by bonds

Ammonia Haber-Bosch Process N 2 (g) + 3H 2 (g) -> 2NH 3 (g) Nitrogenase Shriver & Atkins Inorganic Chemistry 5th Edition

Carbon Dioxide

Carbon Dioxide 1.Carbon Dioxide is one of the greenhouse gasses that contribute to global warming 2.The levels of Carbon dioxide in the atmosphere have increased significantly over the past centuries Global warming has led to climate changes such as: 1.Rising sea levels 2.Increasing global temperature 3.Shrinking ice sheets 4.Decreased snow cover 5.Ocean acidification

Cytosine 1.One of the nucleobase molecules that form DNA 2.There are four nucleobases and two base pairs that make up DNA 3.DNA is composed of two stands of nucleobases that bind to each other and form a helix

Cis-platin 1.Chlorine exchanges with water 2.The molecule then has a positive charge 3.The molecule is attracted to DNA 4.The platinum loses water and binds to nitrogen atoms in the DNA, causing the DNA to bend and unwind 5.This prevents the cell from reproducing and accelerates the death of the cell

Making molecules with marshmallows! Oxygen (O) - Red Carbon (C) - Grey or black Hydrogen (H) - White Nitrogen (N) - Blue Chlorine (Cl) - Green Platinum (Pt) - Pink Amine group (NH2 or NH3) - Orange double bond - Black Use marshmallows (like atoms) and connect them with toothpicks (like bonds) to make a molecule. Color the marshmallow so we know what element the atom is: On your index card write: Your name Name of molecule Chemical Formula 1 fact you learned And glue your molecule to the index card

What careers are there in STEM?