A finite number of elements combine in different ways to produce all living and non-living things. Draw the element Boron in your SIN and label all its parts. EXPLAIN how elements make almost an unlimited amount of types of matter.

Which group of elements are the MOST reactive? EXPLAIN your reasoning. Elements are grouped in the periodic table according to similarities of their properties. Which group of elements are the MOST reactive? EXPLAIN your reasoning.

Describe how a mixture is different than a pure substance.

A pure substance has only one kind of matter, a mixture has two or more kinds of matter. Some mixtures are solutions. Give an example of a pure substance, a mixture, and a solution. EXPLAIN your reasoning for each example.

A solution is a mixture in which the molecules of one substance (solute) are dissolved in another substance (solvent). They often look like a single substance and have the same properties throughout. Identify the solvent and the solute in the solution you named from last slide. Explain.

In a chemical change, the particles of matter rearrange to form new products. Give an example of a chemical change found at school. Explain your reasoning. In a physical change, the particles of matter remain the same. Give an example of a Physical change found at school. Explain your reasoning.

Regardless of what kind of change occurs to matter, mass is always conserved! Using your examples from the previous slide, EXPLAIN how mass was conserved in each.