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About Me

Hi! Hola! Ciao! Ola! 

I am Dr. Alexandra Valdés, and I am the 6th grade Science teacher at LEAD Southeast. I love teaching interdisciplinary sciences and laboratory classes. I am eager to work with you all this year!

I was born and raised in the beautiful island of Puerto Rico but lived in New York for almost ten years. I earned a Ph.D. in Marine and Atmospheric Sciences from Stony Brook University and a B.S. in Marine Biology from the University of Puerto Rico at Humacao. I have visited many countries around the world (Dominican Republic, Virgin Islands, Mexico, Colombia, Venezuela, Ecuador, Canada*, England*, Scotland*, Spain, Italy*, Germany, Austria, and Denmark*) and speak four languages (English-Advanced, Spanish-Advanced, Italian-Begineer, and Portuguese-Beginner). I love to travel and learn about different cultures. 

In 2012, I moved to Music City with my family. My husband is a Math Professor at Vanderbilt University and we have a super sweet cat named Kaya. I enjoy very much being surrounded by nature and friendly people. I am very proud to be part of such a diverse and vibrant community; and that is why I love Nashville. It is very important for me to serve others and invest in a better future (kids' education). Thus, I can't wait to learn with you!

If you have any questions please do not hesitate to contact me. 

Phone: (615) 727-4083 
Address: 531 Metroplex Dr., Nashville, TN, 37211

* Most of my visits to these countries were related to scientific research as a student and sponsored by college scholarships. GO TO COLLEGE!

Sixth Grade Curriculum

Unit 1: Scientific Method (Scientific Inquiry)

Hi! Here you can find more information about how scientist do their work: the scientifc method!

BrainPOP Scientific Inquiry

BrainPOP Science Project!

Unit 2: Ecology (Life Sciences)

Discover the fascinating world of ecology by exploring the websites below: 

Where wolves roam

Wolves change rivers video

Food Chain Virtual Lab

Abiotic Factors Virtual Lab

World Biomes

Earth Biomes

Producers, Consumers, Decomposers

Food Chain Game

Energy Pyramid

BrainPOP Food chains

BrainPOP Land Biomes

Review Jeopardy!

Unit 4: The Earth-Moon-Sun System

Here you can find wepages related to The Universe to help you study!

Earth-Moon-Sun Movements

Moon Phases



Eclipses Crash Course Video

Currents NOAA

Surface Ocean Currents RSMAS

Deep Ocean Circulation WHOI

How global warming affects ocean circulation?

BrainPOP Ocean Currents

BrainPOP Tides

Ocean Tides

Ocean Tides Virtual Lab

Unit 5: Atmosphere (Atmospheric Sciences)

Here you can find websites related to The Atmosphere to help you review material discussed in class!

Make a Hurricane!

Global Climate Change Expedition

NOAA Schools for Weaher

Layers of the Atmosphere

Heat convection


Weather Data


Tracking Hurricanes

Weather Games

Unit 8: Energy (Physical Sciences)

Use the following websites to learn more about Energy!

Kinetic and Potential Energy Simulation Lab

BrainPOP Energy

Heat Energy Matching

Heat Energy Cardflip

BrainPOP Electric Circuits

BrainPOP Conductors of Electricity

Energy Conversions

Kinetic Energy

Potential Energy

Forms of Energy

Embedded Unit: Engineering Design & Technology (Engineering)

Want to learn more about Engineering & Tech? Investgate the following links!

BrainPOP Tehcnology and Engineering

How to contruct a BAROMETER

What is Engineeing?

The Scientific Method vs. the Engineering Design Process

Engineers Disciplines Flashcards


Prosthetic Arm


Here you can find websites that can help you during the Science Fair Project: 

GOOGLE LOGIN:; psswd: science6lpse18

Various examples of Science Fair Projects at Beginners, Medium, and Advanced Levels!

More Science Experiments Ideas!

Feeling lost on your science fair project? Take a survey!

BrainPOP Scientific Method

Ask a Scientist!


Fifth Grade Curriculum

Also, here you can find access to Mrs. Waters' webpage with TONS of information about 5th Grade Science!