Unit1: Matter Focus: Atoms, Elements, Compounds Day 24: 10/4/16 If you are re-quizzing, you need a clicker. If you are NOT re-quizzing, you need to get a computer and get back to work on the FBE Wanted poster.

Plan for the Day 1. Periodic Table re-quiz/Enrichment activity 2. Inquiry Activity – “Atom, Element, and Compound” lab stations 3. Discussion and wrap-up

Homework: 3 rd period – “Family Ties” worksheet and finish purple sheet 4 th Period – Purple sheet- Periodic table review

Essential Question– Copy on Page 21 What are the differences between elements, compounds, and mixtures?

Re-quiz Time If you are taking the re-quiz, you will use the clicker. If you are not taking the re-quiz, you should be finishing the enrichment activity.

“Atom, Element, and Compound” inquiry activity The chart on your lab sheet has some information filled in for you. Move QUIETLY around the room observing the different substances. Fill in the empty boxes on your sheet. You will have about 15 minutes for this lab.

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Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 25: 10/5/15 1.Get the purple and white sheets from the corner of the lab table. 2.Place your “Family Ties” worksheet on the lab stool.

Plan for the Day 1. Finish discussing Inquiry Activity – “Atom, Element, and Compound” and discussion 2. Notes(foldable)/discussion – Elements, Compounds, Mixtures 3. Mini-Lab (if time permits) 4. Wrap-up

Homework: 1.Pre-lab questions 1-5 (front of sheet only) 2.Purple periodic table review sheet will be due tomorrow (front and back)

E.Q. – What are the differences between elements, compounds, and mixtures?

Lets’ review the lab from yesterday (Atoms, Elements, Compounds)

Let’s begin our foldable.

Elements and Compounds

Classifying Matter Matter Pure SubstancesMixtures ElementsCompounds Homogeneous Heterogeneous Fe, OH 2 O, CO 2 milk, tea, salt water, air muddy water, salad dressing, trail mix

What is a 18.Pure Substance? Def. A classification of matter that includes both elements and compounds A.D. Cannot be separated by physical means such as distillation, filtration - sorting, or chromatography. A.D. Examples are elements and compounds.

20.Elements Pure substance that cannot be broken down into simpler substances An element is made of one kind of atom There are over 100 on the periodic table Ex. Oxygen, Nitrogen, Carbon, Hydrogen

What Is A 21. Compound? Def. A pure substance that is created by 2 or more different elements chemically reacting and joining together A.D. Can only be separated into simpler substances through another chemical reaction A.D. Make up all living and nonliving things

Compounds (cont.) A.D. Their physical and chemical properties are different from the properties of the individual elements A.D. Examples are water H 2 O, carbon dioxide CO 2, table salt NaCl, glucose C 6 H 12 O 6

Why do compounds form? So that elements can become more stable − Na is flammable in water, silvery, soft, metal; Cl 2 (Chlorine) is green toxic gas … when they react (chemically combine), you get… − NaCl (table salt) is a very stable compound that is not flammable, not toxic, not silvery, not a metal – safe to eat – − ***The physical and chemical properties of the new substance (salt) are different than the original elements. − Compounds that are extremely unstable will break down to form more stable substances.

How Do Compounds Form? THE OCTET RULE: an element is most stable with 8 valence electrons − Elements will join chemically to get 8 valence electrons Ex: CO 2 - oxygen has 6 valence electrons and carbon has 4 If the carbon shares 2 valence electrons with each oxygen, everyone will have 8 valence electrons! Thus, they are chemically bonded!

Drawing

What Do Compounds Have To Do With My Life? Compounds are the substances that make up ALL living and non-living things Examples: Where would you be without: − H 2 O—water − NaCl—table salt − C 3 H 8 O—rubbing alcohol − C 55 H 98 O 6 —an example of an unsaturated fat

Think pair share O 2, NaCl, and NH 3 are all molecules; HOWEVER, only NaCl, and NH 3 are compounds…. WHY?

19. Mixtures Def. The physical combination of 2 or more substances A.D. 1 -It is not chemically combined A.D. 2 -Can be separated by physical means such as filtration/sorting, distillation, and chromatography A.D. 3 –Can be divided into 2 groups − Homogeneous and Heterogeneous

What’s the difference?

22. What Is a Heterogeneous Mixture? Def. A mixture in which the parts are unevenly distributed – looks different throughout A.D. 1 -The parts may be more concentrated in one part of the mixture A.D. 2 -Not uniform throughout A.D. 3 – You can see, or distinguish between, the component parts A.D. 4 –Examples: Tossed salad, granite, salad dressing, trail mix

What Is a 23. Homogenous Mixture? Def. A mixture in which the parts are evenly distributed – looks the same throughout A.D. 1 –Substances cannot be visibly distinguished from one another A.D. 2 –They are commonly called solutions. A.D. 3 – Examples: air, salt water, milk, steel, Kool-Aid

Stopped here Day

24. Solution Def. A homogeneous mixture – looks the same throughout A.D. 1 -Has 2 parts – solute and solvent A.D. 2 – Can be separated by physical means (filtering, distillation, etc.) A.D. 3 - Ex. Salt water can be separated by heating the mixture; the water evaporates and leaves the salt behind

25. Solute – Def. “stuff” being dissolved in a solution A.D. 1 -The substance in the lesser amount A.D. 2 – Ex. The sugar in coffee, the salt in water, the CO 2 gas in soda

26. Solvent: Def. The dissolver – in a solution, the substance that dissolves another A.D. 1 – The substance in the greater amount A.D. 2 – Ex. the water in salt water, the milk in chocolate milk A.D. 3 – Water is the Universal Solvent- It dissolves many substances

Wrap-up - Look at the pictures. Which is the element? Compound? Mixture? WHY?????? Discuss within your lab group. A BC

Stop

Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 26: 10/6/16 1.Place your purple periodic table sheet on the lab stool. 2.Science Starter: Why are compounds more difficult to separate than mixtures?

Plan for the Day 1. Finish foldable notes on elements, compounds, and mixtures 2. Begin station labs exploring mixtures

Think pair share O 2, NaCl, and NH 3 are all molecules; HOWEVER, only NaCl, and NH 3 are compounds…. WHY?

What Do Compounds Have To Do With My Life? Compounds are the substances that make up ALL living and non-living things; this means everything around you! Examples: How would your life be different without… − H 2 O—water − NaCl—table salt − C 3 H 8 O—rubbing alcohol − C 12 H 22 O 11 — table sugar − H 2 O 2 – hydrogen peroxide − Where would plants be without CO 2 ?

Let’s finish the vocabulary in our foldable.

19. Mixtures Def. The physical combination of 2 or more substances A.D. 1 -It is not chemically combined A.D. 2 -Can be separated by physical means such as filtration/sorting, distillation, and chromatography A.D. 3 –Can be divided into 2 groups − Homogeneous and Heterogeneous

What’s the difference?

22. What Is a Heterogeneous Mixture? Def. A mixture in which the parts are unevenly distributed – looks different throughout A.D. 1 -The parts may be more concentrated in one part of the mixture A.D. 2 -Not uniform throughout A.D. 3 – You can see, or distinguish between, the component parts A.D. 4 –Examples: Tossed salad, granite, salad dressing, trail mix

What Is a 23. Homogenous Mixture? Def. A mixture in which the parts are evenly distributed – looks the same throughout A.D. 1 –Substances cannot be visibly distinguished from one another A.D. 2 –They are commonly called solutions. A.D. 3 – Examples: air, salt water, milk, steel, Kool-Aid

24. Solution Def. A homogeneous mixture – looks the same throughout A.D. 1 -Has 2 parts – solute and solvent A.D. 2 – Can be separated by physical means (filtering, distillation, etc.) A.D. 3 - Ex. Salt water can be separated by heating the mixture; the water evaporates and leaves the salt behind

25. Solute – Def. “stuff” being dissolved in a solution A.D. 1 -The substance in the lesser amount A.D. 2 – Ex. The sugar in coffee, the salt in water, the CO 2 gas in soda

26. Solvent: Def. The dissolver – in a solution, the substance that dissolves another A.D. 1 – The substance in the greater amount A.D. 2 – Ex. the water in salt water, the milk in chocolate milk A.D. 3 – Water is the Universal Solvent- It dissolves many substances

How can we separate?

How do we separate mixtures? Filtration Evaporation

Look at the pictures. Which is the element? Compound? Mixture? WHY?????? Discuss within your group. A BC

How Are Mixtures Important To Your Life ? We encounter mixtures everywhere in our lives and some are necessary for our survival. How would your life be different without: − Air − Ice cream − Kool-aid − Shampoo − Soup − Milk − Orange juice

Let’s begin our lab. BEFORE BEGINNING, read the directions carefully at your station. I will randomly choose 1 lab sheet to grade from each group. Be sure your answers match and that your group members are working. If they are not, see me. Your grade could be adversely affected by a “slack” group member! Keep your voices low and stay on task. Rotate through the stations in numerical order. Have fun!

Stopped here for Day 26, 2016

Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 27: 10/7/16 3 rd period – Please tape the homework assignment from yesterday onto the last page of your lab packet. One change to directions… 4 th period – Take out your purple foldable

Plan for the Day 1. 4 th - Finish “solvent” in your foldable 2. Begin station labs exploring mixtures

Homework: 1.If you have not turned in the enrichment activity “Wanted by the FBE ”, it will be due Monday. 2.If you have not finished the “ Periodic Table Basics” project, it will be due Monday. I will be here this afternoon until 5:00 and I will be here Monday morning at 8:00.

E.Q. – What are the differences between elements, compounds, and mixtures?

3 rd – Let’s tape the ½ sheet into our lab packet and get back to the lab. 4 th - Let’s finish the vocabulary in our foldable then get going with the lab.

Let’s begin our lab. BEFORE BEGINNING, read the directions carefully at your station. I will randomly choose 1 lab sheet to grade from each group. Be sure your answers match and that your group members are working. If they are not, see me. Your grade could be adversely affected by a “slack” group member! Keep your voices low and stay on task. Rotate through the stations in numerical order. Have fun!

26. Solvent: Def. The dissolver – in a solution, the substance that dissolves another A.D. 1 – The substance in the greater amount A.D. 2 – Ex. the water in salt water, the milk in chocolate milk A.D. 3 – Water is the Universal Solvent- It dissolves many substances

Look at the pictures. Which is the element? Compound? Mixture? WHY?????? Discuss within your group. A BC

How Are Mixtures Important To Your Life ? We encounter mixtures everywhere in our lives and some are necessary for our survival. How would your life be different without: − Air − Ice cream − Kool-aid − Shampoo − Soup − Milk − Orange juice

Let’s begin our lab. BEFORE BEGINNING, read the directions carefully at your station. I will randomly choose 1 lab sheet to grade from each group. Be sure your answers match and that your group members are working. If they are not, see me. Your grade could be adversely affected by a “slack” group member! Keep your voices low and stay on task. Rotate through the stations in numerical order. Have fun!

Stop here Day

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Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 28: 10/10/16 Take out your lab packet and pencil and be ready to start stations.

Plan for the Day “Messing with Mixtures” station labs

Homework: 1.“Wanted by the FBE ”, due TODAY. 2.“ Periodic Table Basics” project, due TODAY. 3.“Elements, compounds, mixtures” picture worksheet – due tomorrow 4.QUIZ THURSDAY OVER ELEMENTS, COMPOUNDS,AND MIXTURES. BE LOOKING OVER YOUR FOLDABLE, LABS AND OTHER ACTIVITIES.

E.Q. – What are the differences between elements, compounds, and mixtures?

Let’s get back to our lab. BEFORE BEGINNING, read the directions carefully at your station. Work as a group. Answers should match. Stay in your assigned area. Don’t visit other groups. Keep your voices low and stay on task. Rotate through the stations in numerical order. Have fun! ***IF YOU CANNOT FOLLOW DIRECTIONS, I HAVE AN ALTERNATE ASSIGNMENT FOR YOU! BEWARE AND BEHAVE!

Stop Day 28

Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 29: 10/11/16 1.Place your homework worksheet on the lab stool. 2.Take out your lab packet and pencil and be ready to start stations.

Plan for the Day 1.“Messing with Mixtures” station labs 2. Review labs

Homework: 1. QUIZ THURSDAY OVER ELEMENTS, COMPOUNDS,AND MIXTURES. BE LOOKING OVER YOUR FOLDABLE, LABS AND OTHER ACTIVITIES. 2. “Elements, Compounds, and Mixtures fill- in-the-blank worksheet

E.Q. – What are the differences between elements, compounds, and mixtures?

Let’s get back to our lab. BEFORE BEGINNING, read the directions carefully at your station. Work as a group. Answers should match. Stay in your assigned area. Don’t visit other groups. Keep your voices low and stay on task. Rotate through the stations in numerical order. Have fun! ***IF YOU CANNOT FOLLOW DIRECTIONS, I HAVE AN ALTERNATE ASSIGNMENT FOR YOU! BEWARE AND BEHAVE!

Stop Day 29

How Can We Change Matter Into New Substances? Chemical reaction (also known as a chemical change) is a change in a substance or substances that results in a totally new substance − Ex: 2H 2 (g) + O 2 (g)  2H 2 O(g) Notice that the reactants (the substances you start with) combine to form a new substance (the product)

How Do I Know If A Chemical Reaction Has Occurred? There are 5 indicators of a chemical reaction 1.Evolution of a gas 2.Evolution of light 3.Evolution of heat 4.Color change 5.Evolution of a precipitate Precipitate: an insoluble substance that is produced as result of a chemical reaction

Why Do Chemical Reactions Occur? Chemical reactions occur to produce a more stable product than the existing reactants − Ex: 2Na(s) + Cl 2 (g)  2NaCl(s) *The sodium is highly unstable and the chlorine gas is somewhat unstable. The resulting Sodium Chloride is VERY stable. **It is important to understand that the products have totally different properties than the reactants

Where Does The Matter Go? It is important to understand that when matter undergoes a chemical reaction (ie a chemical change) it does not disappear or appear − The atoms are rearranged and form new bonds, but no matter is lost nor gained This is called the Law of Conservation of Matter

What Kind of Chemical Reactions Do I Experience? The acidic milk and basic baking soda that produce CO 2 gas when a cake bakes Paper burning to produce ashes, CO 2, and H 2 O vapor Hydrogen peroxide decomposing to produce water and oxygen gas