1. Bell question: How does the amount of energy determine the phase of matter?

3. The difference between the states of matter is the amount of energy
The difference between the states of matter is the amount of energy. Solids have the least amount of energy, which is part of why their particles hang so tightly together. Liquids have more energy than solids, which is why they will take on the shape of their container but only up to the surface.
Gases have even more energy than liquids. So much more in fact that their particles spread out to fill the entire space of their container. Gas particles have so much energy that they just can't keep still. They fly around in all directions, putting as much distance as possible between themselves and the rest of the gas particles.
Plasmas are ionized gases, and in their natural form are uncommon on Earth. You've seen them as man-made things, like neon signs and fluorescent light bulbs. But in the rest of the universe, plasma is actually the most common phase of matter! Most stars are plasma, as are the northern lights you see around the Polar Regions.

4. Review of states of matter and phase changes
Four states of matter: Solid, Liquid, gas, and plasma.
Changes of state are physical changes. They occur when matter absorbs or loses energy.
Freezing and melting are changes between liquid and solid states.
Vaporization, evaporation, and condensation are changes between liquid and gaseous states.
Sublimation and deposition are changes between solid and gaseous states.

5. Chemical Reactions

6. A Chemical reaction is a process in which some substances change into different substances.
Reactants are the starting elements and/or molecules in a chemical reaction and the products are the new substances produced in the chemical reaction.
Chemical reactions are represented by chemical equations in which reactants (on the left) are connected by an arrow to products (on the right).
REACTANTS  products

7. Using Chemical symbols and formulas
When scientist write chemical equations, they use chemical symbols and chemical formulas instead of names to represent reactants and products.
How do you think scientist keep track of all these symbols and masses for all the different elements?

9. Law of conservation of Mass
Matter cannot be created or destroyed.
ALL Atoms (elements) and molecules (compounds) have mass.
in every chemical reaction, the mass of the reactants and products MUST be the same!
Reactants (MASS) = PRODUCT (MASS)

10. Balancing chemical equations
Carbon dioxide (a green house gas)
Carbon (C) and Oxygen (o2) react to form carbon dioxide
Using chemical symbols from the periodic table, the balanced chemical equation is:
C + o2  co2

11. Combustion of Methane (CH4)
HERE IS THE UNBALANCED Chemical equation for burning methane (Natural Gas):
Ch4 + o2  co2 + h2o (UNBALANCED)
1st add up the number of C (Carbon) atoms on the reactant side.
Do they equal the number of carbon (C) atoms on the product side?
Do the Same for hydrogen (H).
Now do it for oxygen (O).
What should the balanced chemical reaction be?
Ch  co2 + 2h2O (BALANCED)

12. Chemical equation for photosynthesis
HERE IS THE unbalanced chemical equation for photosynthesis:
Co2 + h2o  c6h12o6 + o2 (UNBALANCED)
Can you balance it?
What form of energy do you think plants use to complete the chemical reaction of photosynthesis?
Write your answers on your Guided notes.

13. answers The balanced chemical equation for photosynthesis is:
6co2 + 6h20  c6h12o6 + 6o2 (Balanced)
Plants, some bacteria, and algae use light, usually from the sun, as energy to complete this chemical reaction.
So, photosynthesis changes light energy to chemical energy in the form of glucose.
NOTE: Glucose (c6h12o6) is used for energy by cells in almost all living things.

14. videos Photosynthesis Photosynthesis from space
If there is time, virtual photosynthesis lab.

15. HAPPY THANKSGIVING!!!