Turn in LAST week’s Catalyst Sheet and Pick up papers from the front!Answer the Catalyst below:1. Classify each as a pure substance or a mixture:

A. Kool-AidB. Copper (Cu)C. Sodium Acetate (NaC2H3O2)D. Cookies and Cream Ice Cream

2. What is the law of conservation of mass?

Magnanimous Monday

BIG GOAL: Class average of 80% Mastery on all Tests and

Quizzes!

ExplosionPractice!

Explosion: Rapid fire questions!1. What day is today?2. What is the scientific method?3. What is the first step to the

scientific method?4. What is an experimental problem?5. What is a hypothesis?6. What is the Passaic mascot?7. What is a Pure Substance?8. What are the 2 types of Pure

Substances?9. Name 3 elements.10. Name 2 Compounds.11. What is a Mixture?12. What are the 2 types of Mixtures?13. What is a homogeneous Mixture14. Give 1 example of a Homogeneous

Mixture.15. Give 1 example of a

Heterogeneous Mixture.16. What is the Law of Conservation of

Mass?17. What is 9x8?18. What is 7x11?19. What is 6x12?20. What is 12 x 12?21. What is the square root of 81?22. What is the square root of 169?23. Spell Chemistry.

CHANGE SEATS!

Law of Conservation of Mass

Law of Conservation of Mass states: In a chemical reaction matter can neither be created

nor destroyed!In other words…The mass before a chemical reaction equals the mass after the

reaction

Again…Mass (g) before a reaction = Mass (g) after the

reaction

Demo!

Where did the Matter go?

Video! Magic!

Separation of a Mixture!

Activity: On your table, you have 1 mixture and a few

supplies…find a way to separate the mixture! (15

min) Write down your procedure as you go!

Filtration • Filtration is a technique that uses a porous barrier to separate a solid from a liquid. This type of separation involves a mixture poured through a piece of filter paper that has been folded in to a cone shape. The liquid passes through and the solid stays behind.

DistillationDistillation: a method of separating mixtures based on boiling point

Decantation

Decantation: a method of separating a solid and a liquid by pouring the liquid off the top of the solid

Chromatography

Chromatography is a technique that separates a mixture (called the mobile phase) on the basis of size and the time to travel across the surface of another material (called the stationary phase).

Activity: Now it’s time to try Chromatography! (5 min)

Properties of Matter

Physical Property: A Characteristic that does NOT change the composition of a

substance (you can get it back!)

Physical Property Examples:Density

Color

Boiling Point

Melting Point

Chemical Property: A Characteristic that CHANGES the composition of a substance (you

can NOT get it back!)

Physical Property Examples:Flammability

Toxicity

Heat it takes to combust

Physical CHANGE: A Characteristic that does NOT change the composition of a

substance (you can get it back!)

Chemical CHANGE: A Characteristic that CHANGES the composition of a substance (you

can NOT get it back!)