Chemistry- Is the study of matter and its changes.

Matter Is anything that has mass and takes up space. Matter is all around you!

Molecule Is the smallest piece of an object, made up of two or more atoms that are held together by bonds.

Atom Is the smallest piece of matter on earth. Two or more atoms make a molecule

 One grain of salt is made of BILLIONS of salt molecules.  If you cut one molecule of salt you would discover the it is made up of two kinds of atoms: SODIUM and CHLORINE.  If someone offered you SODIUM CHLORIDE you could safely use it on your French fries.

 Chemistry is the study of ____________ and its ______________.  Molecules are made up of _____________.  Matter has ______ and takes up ____________.  Table salt is made up of two different kinds of __________ called sodium and ___________.

3 Most Common Forms of Matter Solid, Liquid, and Gas (4 th Plasma)

 Solid Always keeps a definite shape and takes up the same amount of space. The molecules move around but stay very close to each other, they wiggle or vibrate.

 Liquid Always take up the same amount of space, but they do not always keep the same shape. Molecules in a liquid roll and slide around. This is why the shape of liquids change. The molecules in a liquid move more freely over each other. This movement allows liquids to flow and be poured.

 Gas Has no shape of its own or definite amount of space. It fills up any space not filled by solids or liquids. The molecules in gases are very far apart. They move the fastest, bouncing off one another.

 Draw and fill out the Venn diagram explaining the similarities and differences between a solid, a liquid, and a gas.