Unit1: Matter Focus: Atoms, Elements, Compounds Day 25: 10/4/17 If you are re-quizzing, you need a clicker. If you are NOT re-quizzing, you need to finish the enrichment activity from yesterday, front and back. It is for a grade.

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:

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.

PowerPoint -Pure substances and mixtures

Stopped here on 10-4-17

Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 26: 10/5/17 Turn in the “Elements, Compounds, Mixtures” worksheet. Pick up the sheet “Lab: Identifying Elements, Compounds, and Mixtures” and WORK WITH YOUR GROUP TO ANSWER THE PRE-LAB QUESTIONS – 5 MINUTES. Take out your notes from yesterday (Atoms, elements, compounds, pure substances)

Plan for the Day 1. Finish discussing Inquiry Activity – “Atom, Element, and Compound” and notes 2. Mini-Lab – Elements, compounds, mixtures 3. Notes/discussion –Mixtures

Homework: Complete the back of lab sheet for the “Atoms, Elements, Compounds” lab from yesterday. After today’s lesson, you will have enough info to help you finish the concept web and triple Venn diagram.

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

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

Let’s take a few notes about elements and compounds.

PowerPoint Element Compounds etc..ppt

Elements and Compounds

Classifying Matter Matter Pure Substances Mixtures Heterogeneous Homogeneous Elements Compounds muddy water, salad dressing, trail mix milk, tea, salt water, air Fe, O H2O, CO2

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 H2O, carbon dioxide CO2, table salt NaCl, glucose C6H12O6 ***COMPOUNDS – IT TAKES A CHEMICAL REACTION TO MAKE THEM AND IT TAKES A CHEMICAL REACTION TO BREAK THEM.

Why do compounds form? So that elements can become more stable Na is flammable in water, silvery, soft, metal; Cl2 (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 – ***SO… We see that 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: CO2 - 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: H2O—water NaCl—table salt C3H8O—rubbing alcohol C55H98O6—an example of an unsaturated fat

Think pair share O2, NaCl, and NH3 are all molecules; HOWEVER, only NaCl, and NH3 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?

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 26 2016-2017

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 CO2 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. B C A

Stop

Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 27: 10/6/17 Turn in your homework (Venn diagram/concept web from Wednesday’s mini-lab). Take out your mini-lab and notes sheet from yesterday (Elements, Compounds, Mixtures).

Day 27 I used the PPT linked to this one to do the notes on mixtures Day 27 I used the PPT linked to this one to do the notes on mixtures. Maybe put it all together so it isn’t confusing to me. But keep my slides in, They are detailed and have pictures.

Plan for the Day Review mini-lab stations Notes-Mixtures Finish the Periodic Table Basics project – today is it!!!!!!!!!!

Homework: Finish the back of today’s notes sheet on mixtures. – Due Monday.

Now back to yesterday’s lab and the mixtures notes.

PowerPoint Element Compounds etc..ppt

Now to finish the periodic table basics project Now to finish the periodic table basics project. Stopped here for Day 27

*“Periodic Table Basics” analysis questions. Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 28: 10/9/17 Monday Turn in the following: *“Periodic Table Basics” analysis questions. *Enrichment activity for periodic table “Beyond Element 118”. Pick up lab packet from front table.

Plan for the Day Lab- “Messing with Mixtures”

Homework: Quiz Thursday over elements, compounds, and mixtures. Be studying over your various materials.

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

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

How can we separate?

How do we separate mixtures? Evaporation Filtration

Let’s begin our “Messing with Mixtures” 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 28, 2017

Take out your lab packet and pencil and be ready to start stations. Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 29: 10/10/17 Tuesday Take out your lab packet and pencil and be ready to start stations.

“Messing with Mixtures” station labs Plan for the Day “Messing with Mixtures” station labs

Homework: “Elements, compounds, mixtures” picture worksheet and fill-in-the-blank sheet– due tomorrow QUIZ THURSDAY OVER ELEMENTS, COMPOUNDS,AND MIXTURES. BE LOOKING OVER YOUR DIFFERENT 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 here Day 29 2017

Place your homework worksheet on the lab stool. Unit1: Matter Focus: Elements, Compounds, and Mixtures Day 30: 10/11/17 Wednesday Place your homework worksheet on the lab stool. Take out your lab packet and pencil and be ready to start stations.

FINISH Messing with Mixtures” station labs and review Plan for the Day FINISH Messing with Mixtures” station labs and review

Homework: QUIZ TOMORROW 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 30

http://activities. macmillanmh http://activities.macmillanmh.com/science/ca/scienceinmotion/Common/SIM.html?Module=../Grade5/Chapter7-SeparatingMixtures/ http://www.bing.com/videos/search?q=youtube+separating+salt+water+mixture&FORM=VIRE2#view=detail&mid=9C3693CED923CBC395509C3693CED923CBC39550

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: 2H2(g) + O2(g)  2H2O(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 Evolution of a gas Evolution of light Evolution of heat Color change 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) + Cl2(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 CO2 gas when a cake bakes Paper burning to produce ashes, CO2, and H2O vapor Hydrogen peroxide decomposing to produce water and oxygen gas