1. 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:

2. Unit 2 LECTURE 1: MATTER
MATTER
What the universe is made of.
Has mass and takes up space.
Has the property of inertia (the ability to resist changes in motion).

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

4. 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

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

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

7. Indefinite shape and volume FAR apart from each other
Gases:
Indefinite shape and volume
FAR apart from each other
Highly compressible
Highly disordered (entropy)
Inside of gases….

8. 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….

9. 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

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

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

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

13. Fill in the following notes on your concept map…

14. matter
Mixture
Pure substance
Physical changes

15. 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)

16. 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

17. 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?