What’s in the Bubbles? Anna is boiling water in a double neck flask. She notices that bubbles forming on the bottom of the flask rise to the top and wonders what is inside the bubbles. She asks some of her classmates what they think, and this is what they say: Carlos: “They are bubbles of heat.” Sabrina: “The bubbles are filled with air.” Jorge: “The bubbles are and invisible form of water.” Alexis: “The bubbles are empty- there is nothing inside of them.” Jackie: “The bubbles contain oxygen and hydrogen that separated from the water.” Which person do you most agree with? WHY? Explain your thinking:

Endearing Understanding Aim: How can we describe the three phases of mater? Endearing Understanding MATTER What the universe is made of. Has mass and takes up space.

Phases of Matter through the lens of water What is water made of? What are the different forms of water How is solid water different than liquid water How is liquid water different than water in the gas phase.

States of matter- Depend on two factors: kinetic energy- movement of particles (temperature) intermolecular forces- forces between the molecules

Fill in the following notes on your foldable… States of Matter Foldable - solid, liquid, gas, plasma Outside…. Solid Liquid Gas Plasma Strength of Intermolecular forces decreases Kinetic energy increases

Definite shape and volume Solids: Definite shape and volume Tightly packed/ordered so can’t easily slide past each other, molecules vibrate. Incompressible (can’t be pushed together) Inside of solids….

Indefinite shape (fluid), definite volume Liquids: Indefinite shape (fluid), definite volume Close together but can slide past each other, molecules vibrate and rotate almost incompressible Inside of liquids….

Indefinite shape and volume Gases: Indefinite shape and volume FAR apart from each other, molecules move very fast Highly compressible Highly disordered (entropy) Inside of gases….

Group of high energy charged particles (electrons/ions) Plasma: Group of high energy charged particles (electrons/ions) Carry electrical current Ex. Tazer guns, lightning, fire, fluorescent lights Inside of plasma….

Physical property can be observed without breaking bonds in the sample Fill in the following on your notes… Physical property can be observed without breaking bonds in the sample Ex. Density, color, odor, melting point, boiling point Can be… Extensive- depend on amount Intensive- independent of amount

Physical change Sample changes without breaking bonds! Ex. boil water H2O (l)  H2O (g)

Chemical property Observed through reactions (break bonds) Ex. Iron to form rust

Chemical change Bonds break and form new substance Ex. Hydrolysis: 2H2O (g)  2H2 (g) + O2 (g)

Fill in the following notes on your concept map…

matter Mixture Pure substance Physical changes

chemical combination of Pure substance Compound- chemical combination of two or more elements Element- Pure substance that cannot be broken down Chemical change Ex. burning ex. Hydrogen gas (H2) Ex. Water (H2O)

Heterogeneous mixture Physical combination of two or more substance Heterogeneous mixture Physical combination Of 2 or more substances that is different throughout. Homogenous mixture Physical combination Of 2 or more substances that is the same throughout. ex. Salad dressing Ex. koolaid

Siberia youtube video: https://www.youtube.com/watch?v=jKMNSvpB9dY What happens at the macroscopic level (what you can see)? What is going on at the molecular level (what we cannot see but can imagine)? Is this a physical or chemical change? WHY?