Monday, October 19 Today – write in your agenda

Monday – do Choice Board activity #1 if you didn’t turn it in Tuesday – Study Guide Wednesday – Study Guide Thurs 2 & 3 /Fri 4 & 6 – Chemistry Quiz

Reminders: -Tomorrow is the last day for food drive (canned meat) -Turn in completed solubility lab if you didn’t turn it in on Friday -Wear ORANGE tomorrow for Unity Day

Mission: We will be incredible science students.

How can matter be measured, described and changed? Today we will… -Identify kinds of matter based on physical properties (density, states of matter)

Density of water

What information do we need to have in order to calculate the density of water?

Density = Mass / volume

How do we get the mass of the water?

We need to measure the mass of Graduated cylinder empty and then with Water in it. Subtract to get the mass Of just the water.

How do we get the volume of the water? Look at how much water is in graduated cylinder

Should be about 1 g/ml

Open to your Chemistry section

Add to your table of contents

Date Title Page #

10/14 Matter, mass, volume & density notes 1

10/15 Volume, density and solubility 2

10/15 Solubility lab 3

10/19 States of Matter (I will give you this page)

4

Only add a TINY amount of water at a time and stir it in

Is this a solid or a liquid? Support your answer with evidence.

• Write “4” on bottom right corner of this paper

States of Matter: solids, liquids and gases

State Volume Shape Particles Examples

Solid

Liquid

Gas

Pages 27-33

States of Matter: solids, liquids and gases

State Volume Shape Particles Examples

Solid

Liquid

Gas

Fixed volume

Fixed volume

Fixed shape

Volume can change

Shape can change (shape of container)

Shape can change (shape of container

Particles are close together, can vibrate

Particles are further apart, can slide freely past one another

Particles are far apart, move freely in any direction

Is this a solid or a liquid? Support your answer with evidence.

States of Matter

• Pages 50-55

ENERGY Low energy High energy

Melting Evaporation (bubbling = boiling)

Condensation Freezing

Sublimation

• Melting Point – The lowest temperature at which a substance melts (changes from solid to liquid)

• Freezing Point – The temperature at which a specific liquid becomes a solid

• Boiling Point – The specific temperature at which a liquid boils

How can we change something from one state of matter to another?

• Add or remove heat

Cool to create a solid

Heat up to change to liquid then gas

As you add heat, the molecules move faster and faster and spread out

• These are properties that vary depending on what the substance is. Each element has its own freezing, melting and boiling points. For compounds, these will depend on the types of atoms (elements) and the types of bonds between atoms. Because these are unique to elements and compounds, they can be used to identify them.

Tuesday, October 20

Please start a new paper. write the date and question

10/20: If an object has a definite volume but the shape can change, then what state of matter is it in?

Tuesday, October 20

Please start a new paper. write the date and question

10/20: If an object has a definite volume but the shape can change, then what state of matter is it in?

liquid

Reminders: -Study guide due and quiz – Thurs (2nd and 3rd), Fri (4th and 6th) -Signed conference sheets due to 2nd hour teachers by next Wednesday -Wear ORANGE tomorrow for Unity Day

Mission: We will be incredible science students.

How can matter be measured, described and changed? Today we will… -Classify matter in terms of elements, compounds and mixtures

Open to your Chemistry section

Add to your table of contents

Date Title Page #

10/14 Matter, mass, volume & density notes 1

10/15 Volume, density and solubility 2

10/15 Solubility lab 3

10/19 States of Matter 4

10/20 Elements, compounds and mixtures (I will give you this page)

5

In pencil, put an X next to the statements that you think are correct

No

No

No

No

No

No

YES

YES

YES

Pages 16, 18, 21-24 in Matter and Energy Skip the box about heterogeneous and homogeneous mixtures

element periodic

Hydrogen, oxygen, carbon, gold atom

atoms molecule molecule

Water (H2O), Carbon dioxide (CO2), Oxygen (O2), glucose (C6H12O6)

pure

pure single

compound

Pure – single atom – gold, carbon, oxygen, hydrogen Compounds – water, salt, carbon dioxide

mixture

Saltwater, air (has many different gases), sand, sand and water, steel (iron and carbon)

Mixtures do not have to be liquid

A mixture in which there are different properties in different parts of the mixture (things aren’t even distributed)

Oil and water, sand, sand and water

A mixture in which substances are evenly distributed throughout the mixture (you cannot tell one part of the mixture from another)

Salt water, sugar water, the air in this room, steel (iron and carbon)

Compounds are new substances formed by atoms that bond together

The substances in mixtures remain the same substances

Can be separated only be breaking bonds between atoms

Can be separated by physical means

The proportions of different substances in a compound are fixed because the type and number of atoms of the basic unit of the compound are always the same

The proportions of different substances in a mixture can vary throughout the mixture or from mixture to mixture

Salt, water, glucose Salt water, air (with nitrogen, oxygen, carbon dioxide, etc)

How can we change something from one state of matter to another?

• Add or remove heat

Cool to create a solid

Heat up to change to liquid then gas

As you add heat, the molecules move faster and faster and spread out

• These are properties that vary depending on what the substance is. Each element has its own freezing, melting and boiling points. For compounds, these will depend on the types of atoms (elements) and the types of bonds between atoms. Because these are unique to elements and compounds, they can be used to identify them.

Work on study guide – this is due on Thursday for 2nd and 3rd hours and on Friday for 4th and 6th hours

Wednesday, October 21

Please write the date and question

10/21: Identify which state of matter each of these is in?

A B C

Wednesday, October 21

Please write the date and question

10/21: Identify which state of matter each of these is in?

A B C

gas liquid solid

Reminders: -Study guide due and quiz – Thurs (2nd and 3rd), Fri (4th and 6th) -Signed conference sheets due to 2nd hour teachers by next Wednesday -Today is Unity Day

Mission: We will be incredible science students.

How can matter be measured, described and changed? Today we will… -Classify matter in terms of elements, compounds and mixtures -Identify properties of matter

• Please put everyone’s name on the paper

Pods Jobs – Whiteboard Challenge

Asker – repeats the question to the group or reads the problem to the group First – this person gives their answer first, then go around the group and everyone answers the question Scribe – writes down all of the answers and then the short paragraph Voice – read the short paragraph to the class

Blue cube = Red liquid = Orange liquid = Yellow liquid = Green liquid = Pink star =

.4 g/ml

.9 g/ml

1.3 g/ml

1.4 g/ml

2 g/ml

3 g/ml

Density Probe

There is only 1 correct answer

Lab Rewind

Solubility Lab: What was the purpose?

To determine how temperature of the water affects the solubility of sugar.

What did you do?

Tested how fast sugar (solute) dissolved in different temperature water (solvent)

What results did you get? The sugar dissolved faster in the warmer water and slower in the cold water.

What was your conclusion? The greater the temperature, the greater the solubility of the sugar.

Is it a compound or a mixture? Why?

Mystery substance A: This substance looks like red water. If you evaporate the water, you are left with red powder. Mystery substance B: This substance looks like a gray powder. The elements that make it up are in a specific proportion. The only way to break it into smaller components is through chemical reactions. Mystery substance C: This is made up of iron and carbon. The atoms of iron and carbon at not bonded together.

Mixture – can be separated by physical means

Compound – can only break bonds through chemical reactions, elements in specific proportions

Mixture – different types of atoms are not bonded together

Homogenous or Heterogeneous?

Saltwater (once salt dissolves)

Sand Oil and water

Steel Homogeneous

Homogeneous

Heterogeneous

Heterogeneous

Pictionary Rules 1. No words, symbols or numbers – just pictures. Person drawing cannot talk. 2. Each team sends someone up to draw. You draw until someone guesses correctly. 3. All teams write down their guesses. Once you think what it is, hold up the whiteboard. If it’s wrong, you get 2 more guess (you only get a total of 3 guesses per picture). 4. First team that gets it correct, gets 1 point.

Chemistry

Friday, October 23

Please write the date and question

10/23: The density of this gold bar is 19.3g/cm3. What will the density be if I cut this bar in half?

Thursday, October 23

Please write the date and question

10/23: The density of this gold bar is 19.3 g/cm3. What will the density be if I cut this bar in half? 19.3 g/cm3

The density does not change

Reminders: -Signed conference sheets due to 2nd hour teachers by next Wednesday -Report cards are due to 2nd hour teachers by next Wednesday -Please take home extra materials from Zoom project -Red Ribbon week Monday – PJs Tuesday – sports jersey or t-shirt Wednesday – Red Thursday – hats Friday – superhero

Please turn in study guides – make sure that your name is on them.

1-Quiz

2-Article and questions