Page: 38, 1. Name 3 properties of glass: transparent, solid, water proof Page 38, 2. All materials you can ___ or ____ are matter hold, touch

Page, 38, 3. Light and _____ are not matter. Sound

Define: matter, atom Label the parts of an atom and their basic

characteristics Observe video related to matter and its basic

stucture Understand models and how they are used in

science

Warm-up Notes and discussion Video – atoms

Chapters 2 Matter

Matter – is anything that takes up space and has mass.

Example: book, air, water, …. You

Chemistry is the scientific study of the composition, structure, and properties of matter and the changes it undergoes. (glass making- sand, limestone,& soda ash)

Long ago ancients teachers taught everything was made of 4 things : Earth(rocks-soil), Air, Fire, and Water

What is matter made up of?

2000 years ago, the Greek philosopher Democritus named the smallest piece of matter ATOM – “uncuttable or indivisible”

Atom – the smallest complete unit of matter or “the basic building blocks of matter”

There are 3 parts of an atom:

electron neutron

proton

Nucleus which is the center of the atom contains

1. Proton – particle in the nucleus with a positive (+) charge

2. Neutron – particle in the nucleus with no charge or neutral charge.

Outside the nucleus

3. Electron – small particle with a negative (-) charge in orbit around the nucleus of an atom. 2000 electrons = 1 proton in weight *example diagram page 106-108

Matter – atoms – how it is all put together

https://mrgoodyear-physicalscioence.weebly.com/

1. The word atom means ________ in Latin or Greek Unbreakable, uncuttable, indivisible 2. Name the negative charged part of an atom: electron