1. Science 10 Unit 2 CHEMISTRY IN
ACTION!

2. Unit Set-Up 6 weeks Vocabulary list Quizzes & 1 MAJOR TEST
1 MAJOR TERM PROJECT
Labs – Once a week

3. Word Bird
List of terms from Mrs. Pheifer in your binder

4. Chemistry
Chemistry is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.

5. What do chemists do?
A chemist generally can be involved in developing new products, quality testing using qualitative and quantitative chemical analyses, conduct research through experiments and even teaching. Some chemists may:
Create products such as drugs and that can be produced profitably and can be patented.
Use laboratory and computer controlled equipment
Observe and analyze reactions from their experiments and document reactions, changes
Some may teach you!

6. Careers in Chemistry Biochemist Food Technologist Chemical Analyst
Industrial Hygienist
Chemist, Food
Laboratory Assistant
Pharmaceutical
Police - Crime Lab Analyst

7. Matter
Matter is everything around you. Matter is anything made of atoms and molecules.
Matter is anything that has a mass.
Even though matter can be found all over the universe, you usually find it in just a few forms. As of 1995, scientists have identified five states of matter. They may discover one more by the time you get old.

8. What makes a state of matter?
It's about the physical state of molecules and atoms.
Changing states of matter is about changing densities, pressures, temperatures, and other physical properties. The basic chemical structure does not change.

9. 5 States of Matter
Solids, liquids, gases, plasmas, and Bose-Einstein condensates are all different states of matter.
Each of these states is also known as a phase.
Elements and compounds can move from one phase to another phase when special physical forces are present.
One example of those forces is temperature.

10. Copy this into your notes!
Phase Changes
Copy this into your notes!

12. Changing States of Matter

13. CHEMICAL vs. PHYSICAL CHANGES
Physical changes are about energy and states of matter. Chemical changes happen on a molecular level.
Physical Change = To add energy (temperature or force) and change the shape of the molecule.
Chemical Change = A process in which new substances with new properties are formed.

14. Physical Change

15. Chemical Change

16. Review

17. Solid Basics Solids are usually hard Molecules are pushed together
Solids can hold their own shape
The atoms inside of a solid are not allowed to move around too much.

18. Liquid Basics Fill up the container they are in.
Difficult to compress (push the atoms together).
Liquids have cohesive (sticky) forces at work that hold the molecules together.

19. Gas Gas is everywhere (e.g. atmosphere).
Gases are random groups of atoms.
Gases are really spread out and the atoms and molecules are full of energy. They are bouncing around constantly.

20. Gases Gases can fill a container of any size or shape. (e.g. Balloon)
Vapor and gas mean the same thing.
Gases hold huge amounts of energy, and their molecules are spread out as much as possible. With very little pressure, when compared to liquids and solids, those molecules can be compressed.

23. PLASMAS!

24. Plasma Basics
Plasma is the fourth state of matter and occurs at very high temperatures.
Commonly occur in nature.
The Sun’s core, the stars and lightening are all examples of plasmas!

25. Bose-Einstein Condensation
The lowest state of matter.
Occurs at very cold temperatures called absolute zero
Results in the formation of a SUPER SOLID!

26. Review
Solutions & Mixtures!

27. SOLUTIONS AND MIXTURES
Solutions are groups of molecules that are mixed up in a completely even distribution.
Homogeneous Solutions
Heterogeneous Solutions

28. CAN ANYTHING BE IN SOLUTION?
As a rule of thumb, there is usually more solvent than solute.

29. MAKING SOLUTIONS

30. ALLOYS Alloys are basically a mixture of two or more metals.
The main idea with alloys is that they are better at something than any of the metals would be alone.

31. EMULSIONS A mixture of oils and waters.
Think about a bottle of salad dressing. Before you mix it, there are two separate layers of liquids.
When you shake the bottle, you create an emulsion.
As time passes, the oil and water will separate to their original states.

32. Homework
Bring in coloured pencils for tomorrow!