What is matter? Continued! OA4.1 Understand properties of matter

1. Element Word Definition Picture Matter that is made of Only one type of atom Cannot be broken down Can exist as atoms or molecules Carbon, hydrogen, and oxygen are all elements. The picture is of the element zinc in hydrogen chloride.

periodic table Scientists use the periodic table to organize elements. Each element has its own special place on the table. The places are decided by the characteristics of the element.

2. Molecule Word Definition Picture Two or more atoms of the same element, hat are chemically bound together. Hard to separate Example: Oxygen gas (2 oxygen atoms), Ozone (3 oxygen atoms), Nitrogen gas (2 nitrogen atoms) Picture Next slide!

Ozone molecule

Nitrogen molecule

In the animation above, two nitrogen atoms (N + N = N2) make one Nitrogen molecule.

3. Compounds Word Definition Picture Atoms of two or more different elements bound together. Hard to separate Example: Water (hydrogen and oxygen), Carbon dioxide (carbon and 2 oxygen), carbon monoxide (carbon and 1 oxygen) Picture Next slide!

In the animation above, water (H 2 0) is a compound made of Hydrogen and Oxygen.

Carbon dioxide molecule

Water molecule

4. Mixture Word Definition Picture A substance made of 2 or more elements or compounds that are mixed together Easy to separate Example: mud (soil and water), concrete

Concrete mixture: The thing to remember about mixtures is that you start with some pieces, combine them, and then you can do something to pull those pieces apart again. You wind up with the same molecules (in the same amounts) that you started with

5. Solution Word Definition Picture A mixture where one substance dissolves, (seems to disappear) when it’s put into another. Easy to separate Example: salt water, kool aid

Salt

Matter Mixtures Solution Pure Substances ElementMoleculeCompounds Made up of Atoms

Closure: five finger summary Trace your hand on a separate sheet of paper. In the palm of your hand write the word “MATTER” Write a sentence about what you learned today…one in each finger. So you will have a total of 5 summary sentences written in each of your fingers (+ thumb). Turn into your teacher.