Today’s Agenda… Bellringer: Are these changes physical or chemical? Give at least 2 pieces of evidence for each change. Use your checklist to help you. Carving a statue from marble Melting silver Making a hard boiled egg Cutting a cake into pieces Notes on The Structure of Matter

Structure of Matter Study Pack #9

To be or not to be… What is matter? What is not matter? Matter is anything that has mass and takes up space

To be or not to be… Is it matter? Air Light Heat Water A rainbow Thoughts

What is matter made of? Atoms are the smallest particles that make up matter Atoms are so small that it would take 1 million of them lined up in a row to equal the thickness of a human hair

Inside of an Atom Atoms are made up of 3 types of particles called: Protons Neutrons Electrons

Inside of an Atom In the center is the nucleus The nucleus is made of protons and neutrons Outside the nucleus there are electrons Page 104

Inside of an Atom Electrical Charge Protons are positive Electrons are negative Neutrons are neutral

Law of Conservation of Mass Says that we cannot create or destroy matter! This is because we cannot create or destroy the atoms that make up matter!

What did you learn? True or False Matter is anything that has mass and takes up space. Matter can be destroyed. Matter is made up of small particles. Protons and electrons are found in the nucleus. Protons have a positive electrical charge.

Today’s Target I understand that matter is composed of parts too small to be seen without magnification.