6th Science - Atoms, Elements and Compounds

SCIENCE

Class: Atoms and Elements

Date: October 26th

2009

Teacher's notes

Objectives

Vocabulary

Link and Learn

In‐Class Survey Prepared by

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6th DaVinci ‐ Atoms, Elements and Compounds Name

Reward Blackmark

Name

Carlos A.

Martín

Joaquín

Maylin

Victoria

Carlos R.

Mariana

Isabel

Christopher

Sthefanny

José

Ana Caroline

Santiago

Karen

Joshua

Erick

Héctor

Bryan

Gabriela

Angie

Alexandra

Sandra

Humberto

Arturo

Giosué

Maria Fernanda

Ariana

Daniel

Alessio

Paola

Reward Blackmark

2

6th Rembrandt ‐ Atoms, Elements and Compounds Name

Reward

Blackmark

Name

Mariano

Enzo

Miguel

Valeria P.

Melanie

Henry

Alejandro

Gonzalo

Adriana

Sebastian

Fabrizio

Mariano

Felipe

Alondra

Sol

Bruno

Edinson

Camila

Valeria J.

Jimena

Daniela

Rodrigo

Eduardo

María Laura

José F.

Diana

Kimberly

Jesus

Reward Blackmark

Alexandra

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Let's remember previous learned concepts...

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How is Matter present in Nature?

http://bit.ly/OMjEN

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New knowledge beginning...

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What are Atoms and Elements?

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The Atomic Theory

• Democritus (400 BC) proposed that matter was not made of particles. This theory was accepted for 2000 years.

• By the early 1800s, John Dalton proposed an atomic theory of matter that was based on experimental evidence. His theory is that all matter is made up of tiny particles called atoms.

http://bit.ly/243Cfc

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http://bit.ly/4fugOQ

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The Structure of an Atom • Atoms are made up of even smaller particles called subatomic particles. The nucleus is the very tiny center of an atom.

• The nucleus is made up of protons and neutrons.

• A proton is a subatomic particle with a positive charge.

• A neutron is a subatomic particle with no charge. the rest of an atom is made up of electrons, which surround the nucleus.

• An electron is a subatomic particle with a negative charge.

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Elements • An element is a substance made up of only one kind of atom.

• An atom is the smallest unit of an element that has all the properties of that element.

• Each element has an atomic number, which is the number of protons in one atom of that element. There are more than 115 elements; most of them that occur naturally, but some are made in the laboratory under artificial conditions.

• The atoms of most elements do not occur alone. Instead, they are linked together .

• Two or more atoms linked together form a molecule.

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The Periodic Table • Elements can be grouped together because they have similar properties.

• In 1869 Dmitri Mendeleev organized elements by their atomic masses, showing predictable patterns.

• It was found later that an order based on the number of protons in one atom of an element is better than one based on atomic mass.

• In the modern periodic table, elements are arranged in order of atomic number.

• Elements with similar properties are in the same column, called group. Elements from the same group have the same number of e‐ in the outer energy levels of their atoms.

• The arrangement of e‐ gives elements their chemical properties.

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Metals • Elements are classified by their properties.

About 25% of elements are nonmetals. The rest are metals.

• All metals except mercury are solid at room temperature.

• Metals have familiar properties: luster or shininess, malleable or hammered into thin sheets, ductile because they can be formed into wires, good conductivity (electric and thermal).

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What are Compounds?

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Compounds • A compound is a substance made of the atoms of two or more elements.

• A chemical formula shows which elements and how many atoms of each are in a compound.

• When atoms join to form a compound, they undergo a chemical change.

• The properties of the compound are different from those of the elements in it.

• Compounds can also react with each other. When compounds react, they change, and form new products.

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Would you like to know about States of Matter?

THE END

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Teacher's Notes This class has been designed to cover the topic of Atoms and Elements from Monday, October 26th till Friday October 30th.

For further knowledge about this topic: 1. Conduct a thorough search under the topic: Atoms and Elements on the Web, books and magazines.

2. If findings are not specific, ask your teacher for suggestions.

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Objectives • • • • • •

Identify an Atom and its major parts.

Describe an element.

Describe and compare the properties of metals.

Recognize how the elements are grouped in the periodic table.

Identify a compound as a combination of two or more elements.

Describe what a chemical formula reveals about a molecule.

Note: All, or most, of the objectives will be covered during class time, however the student must be responsible for those objectives not covered or concluded.

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Vocabulary Nucleus: the center of an atom.

Proton: a subatomic particle with a positive charge.

Neutron: a subatomic particle with no charge.

Electron: a subatomic particle with a negative charge.

Element: a substance made up of only one kind of atom.

Atom: the smallest unit of an element that has all the properties of that element .

Molecule: a group of two or more atoms joined together.

Periodic table: the table of elements in order of increasing atomic number, grouped by similar properties.

Compound: a substance made of the atoms of two or more different elements.

Note: Most of the vocabulary words will be covered in class, however the student must be responsible for those words not covered or concluded.

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Link and Learn You can visit the following websites to improve your understanding on the present topic: • • • • •

http://www.particleadventure.org/ http://science‐learning2009.wikispaces.com http://learningandscience.blogspot.com http://linkandlearn.wikispaces.com http://libraryatstgeorge.blogspot.com

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Prepared by

Gerardo LAZARO Science Lead Teacher Email: glazaro@sanjorge.edu.pe Wiki: http://science‐learning2009.wikispaces.com Blog: http://learningandscience.blogspot.com Twitter: http://twitter.com/glazaro

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6th Da Vinci Grade: Subject: Date:

6th Da Vinci Science October 30th

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1

What was your UNDERSTANDING of the topic: "Atoms, Elements and Compounds"

A

I understood 25% of the whole topic

B

I understood 50% of the whole topic

C

I understood 75% of the whole topic

D

I understood 100% of the whole topic

E

I didn't understand the class

Single Answer

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2

What was your level of EFFORT to understand the topic?

A

My effort level was 25%

B

My effort level was 50%

C

My effort level was 75%

D

My effort level was 100%

E

I didn't put any effort

Single Answer

28

3

What RESOURCES helped you understand the topic?

A

Text

B

Images

C

Animations

D

Videos

E

Teacher's Speech

F

None

G

Other

Multiple Answer

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4

How does the SMART Board help you understand the topic?

A

It helps me visualize concepts

B

It helps understand difficult concepts

C

Touching things helps me learn

D

Interacting with the information makes it easier to understand

E

I prefer less effects or audiovisual resources

F

It doesn't really help much

G

I don't like it

Multiple Answer

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6th Rembrandt Grade: Subject: Date:

6th Grade Science 23­Oct­09

31

1

What was your UNDERSTANDING of the topic: "Atoms, Elements and Compounds"

A

I understood 25% of the whole topic

B

I understood 50% of the whole topic

C

I understood 75% of the whole topic

D

I understood 100% of the whole topic

E

I didn't understand the class

32

2

What was your level of EFFORT to understand the topic?

A

My effort level was 25%

B

My effort level was 50%

C

My effort level was 75%

D

My effort level was 100%

E

I didn't put any effort

33

3

What RESOURCES helped you understand the topic?

A

Text

B

Images

C

Animations

D

Videos

E

Teacher's Speech

F

None

G

Other

34

How does the SMART Board help you understand the topic?

4

A

It helps me visualize concepts

B

It helps me understand difficult concepts

C

Touching things help me learn

D

Interacting with the information makes it easier to understand

E

I prefer less effects or audiovisual resources

F

It doesn't really help much

G

I don't like it

35

Attachments

ChangesOfStateUS.notebook