I watched a couple of brainpop videos about matter. I decided to share my newly refreshed knowledge.
Summary of Knowledge:(Measuring Matter)
Mass, Volume and Density are all physical properties of matter that are used to measure matter. Matter is anything that has mass, and volume. We measure matter to identify unknown substances, compare substances, and standardize those measurements. To find the mass of an object, measure the object on a digital scale, or a triple beam balance. This method is successful because on milliliter is equivalent to 1 cubic centimeter. To find the volume of an object, multiply it's dimensions, (length x width x height) or displace that object in water. Density is the measure of how tightly packed the atoms are inside of it. To find the density of an object, divide mass/volume.
Summary of Knowledge:
(States of Matter)
Matter is anything that has mass and volume. Matter is made up of atoms. Atoms can chemically combine with other atoms and form a new molecule, or substance. A substance made up of only one type of atom is called an element. The periodic table of elements lists all the known elements that chemically combine with other types of elements to form everything else! Solids, liquids, and gases are all made up of atoms. Liquids have a fixed volume, but not a fixed shape. The atoms inside of a liquid vibrate and slide past one another. If you increase the temperature of a liquid, and reach it's boiling point, it will become a gas. But no matter how many times that substance changes states, the chemical composition stays the same. Water is made up of H20. If you boil liquid water, it becomes steam. But that steam is still made up of H2O. Gases don't have a fixed volume, or a fixed shape. The atoms inside of a gas are very spread apart, and they move around unexpectedly. If you freeze liquid water, it becomes solid ice. Ice has a fixed volume, and a fixed shape. Atoms inside of a solid are packed tightly together and vibrate in place. Other than solids, liquids, and gases there are a couple of other states of matter. Plasma is an electrically charged gas. Colloids are mixtures that contain two separate phases of matter. Bose-Einstein condensate is a state that can only be created in a lab because the temperature is close to absolute zero.