Health

June 1st, 2010
My what big teeth you have!

My what big teeth you have!

First grade students explore teeth models and impressions.

First grade students explore teeth models and impressions.

 

 

 

 

 

 

 

Students love learning about their bodies and how things work.  Taking care of our bodies, understanding how they function, and making healthy choices are all part of health.  Each grade level has been studying a different system.  First graders have been building skeletons and examining teeth specimens.  Second graders have flexed their muscles and built a model of the upper arm to understand how some muscles work in pairs with the skeleton.  Second grade students also examined their finger prints and investigated skin.  Third grades saw how digestion works in a really gross and interesting baggie experiment and explored healthy options for a well balanced diet. 

 

Second grade students compare finger prints.

Second grade students compare finger prints.

Circulation and respiration experiments helped fourth grade students understand how these systems work together.  Fifth graders followed the endocrine system and the changes their bodies are going through.  Sixth graders studied reproduction.  Seventh graders focused on the nervous system and the effects of alcohol and drugs on the body.  Eighth graders explored genetics and created their own paper pets based on dominant and recessive alleles. 

 

Third grade students use healthy choice guides to balance meals and snacks

Third grade students use healthy choice guides to balance meals and snacks

Truth in Media

May 21st, 2010
A student examines some of the 6th grade Truth in Media presentations.

A student examines some of the 6th grade Truth in Media presentations.

 

Is one brand of toilet paper the most absorbent?  How much can a trash bag hold?  How long will  nail polish last?  Sixth grade students created experiments to answer such questions.  Each student selected an advertised product, created a way to test the manufacturer’s claim, presented their findings to the class, and sent their results to the manufacturer. 

Some interesting findings:  generic trash bags hold as much as name brand ones that cost twice as much; super hold hair spray doesn’t work on all hair types;  fabric softeners do make clothes softer; and odor blocking trash bags reduce odor, but do not eliminate it completely.

Constellations

May 7th, 2010
4th Grade Students Studying Constellations

4th Grade Students Studying Constellations

We concluded the space unit by studying stars, black holes, and constellations.  We discussed that constellations have names based upon folk tales and ancient stories.  Many of the names we know come from Greek and Roman mythology.  When people looked up at the night sky, their imaginations let them see what were familiar images to them.
Elementary students were given star paper and asked to create their own constellations.  The only limit was their imagination.  From 4th grade, we have the taco, the book, the bow, the space alien, and the new mythical creature the simera. 

Solar System Creativity

April 30th, 2010

Middle school students were asked to write creatively about the solar system. 

Alliterations, when the words in a phrase or sentence begin with the same letter and sound, are used in tongue twisters.

Saturn sits sadly at sundown.  Johnny, 7th.

Super stellar sun shinning silently in the sky.  Mollie, 7th

Tiny asteroids try to tie tongues.  Hunter, 7th

Atmospheres actually aren’t on many planets.  Aaron, 8th

Earth is as colorful as rainbow sherbet.  Isabelle, 8th

Spheres circle super size sweltering sun. Tripp, 8th

Similes compare two things by using the words like or as.

Mars is as red as Rudolph’s nose.  Maddy, 7th

Pluto is like a small marble.  Henry, 7th

Pluto not being a planet is as sad as “Romeo and Juliet.” Actually, Pluto is sadder.  Sophie, 8th

The earth is like a big glass ball of fun.  Burak, 8th

Acrostic poems use the letters of a word (or words) for the beginning of each line.  For these poems, the word is SOLAR SYSTEM.

Stars burn brightly.

Ouch, my eyes hurt from looking at the sun.

Life on Mars?

Axis that we rotate on.

Rotation in one day.

Sun in the center.

Year is one revolution.

Size of Pluto just isn’t cutting it…

Terrestrial planets near the sun.

Eventually, the sun will burn out and we will all die.

Milky Way.  Not just a delicious snack.

Elisa, 8th

7th Grade Inventors

April 22nd, 2010

This year’s Invention Convention was a huge success.  Congratulations to all the seventh grade students for their hard work and clever ideas.  Because of the wonderful displays, judging was extremely difficult.  Outstanding projects were selected for each of three categories.  Most Creative, Henry’s Foaty Desk, Most Marketable, Mollie’s Kitchen Puzzle, and Best Display, Hunter’s Quick Spat.

Henry's Floaty Desk, winner of Most Creative

Henry's Floaty Desk, winner of Most Creative

Most Marketable--Mollie's Kitchen Puzzle

Most Marketable--Mollie's Kitchen Puzzle

 

Hunter with Best Display for Quick Spat

Hunter with Best Display for Quick Spat

New Images of the Sun

April 22nd, 2010

NASA launched the Solar Dynamics Observatory (SDO) in February.  The first  images have now been released.  Check out SDO for a video of a solar prominence and be ready to change the way you think about the sun.

Whole Sun view from SDO (Nasa)

Solar System Model

April 19th, 2010

 

First grade students compare the size of earth and the sun.

First grade students explore the size of the sun compared to earth.  We used a penny to represent Earth and discovered that 110 Earths could fit across the sun.

Most of us have seen models of the solar system.  Some students have even created models at home with styrofoam or clay.  In science class, we made models that were accurate for size or distance, but not both at the same time.  This Bill Nye video clip explains why such models are very rare.

What Shape is the Earth?

April 9th, 2010
Middle School Students construct models of the earth to determine its shape.

Middle School Students construct models of the earth to determine its shape.

Earth is usually depicted as a perfect sphere, but the science text books state that it is an oblate spheroid (flattened sphere).  Middle school students did experiments to find out for themselves and to answer the question why.  By using a few strips of construction paper and tape to make a sphere and a pencil to represent Earth’s axis, they discovered that rotation, spinning on an axis, makes the sphere flatten out. The equator bulges and the poles move closer together.

Students came up with ways to improve this experiment. 

“You could put centimeter marks on the pencil and track how much it bulges.” Anthony, grade 7

“Spin your pencil carefully, count the rotation, and see how long until if flattens.”  Ella, grade 8

“I could find out how much the model flattened by putting a ruler up to it while spinning it.  While doing that, I could record it with a ’slow-mo’ camera and measure while watching it.”  Ben, grade 6

San Diego Science Festival

March 18th, 2010
March 27, 10:00am – 5:00pm: Expo Day at PETCO Park! Hope to see you there.

 

SDSF logo

 The San Diego Science Festival strives to create exciting and interactive experiences that showcase the remarkable science of greater San Diego, a community recognized as one of the Nation’s scientific leaders. Our wide variety of programs and events inspire all ages, with a special focus on building a pipeline of future scientists and STEM thought-leaders.

SDSF EXPO DAY AT PETCO PARK brings together over 150 hands-on science activities and stage performances for all ages. EXPO DAY Parking and Transportation:
Want to avoid traffic and parking fees?  Consider taking the bus or trolley to the EXPO!  To chart your route, please go to http://www.sdmts.com/Marketing/Sciencefest.asp

If you are brining a chartered bus to the EXPO, you must do your drop off on Southbound 14th and K Street. 

 A sample of events – SEE ALL INTERACTIVE BOOTHS HERE >>

  • See actual DNA and perform DNA extraction techniques
  • Use your olfactory gland (nose) to identify the organic molecules that create the flavors, aromas, and colors in your favorite foods
  • Get an up close look at the science of baseball
  • Put your forensic skills to the test to solve a birthday cake mystery by analyzing saliva samples of the suspects

See our SCHEDULE OF PERFORMANCES >>

 See Photos from EXPO DAY 2009 >>

Save the date for Saturday, March 27th.  EXPO DAY is now at PETCO Park, home of the Padres!  We’re excited for our new venue to bring more space, more parking and new exciting science activities to showcase the science in San Diego area and bring together the people across San Diego County. 

Expo Day will include over 150 hands-on activities and exciting stage shows and is guaranteed to entertain and educate everyone aged 3 to 93!  Bring your families and friends and plan for a day of new experiences.

Ode to Oobleck

March 5th, 2010

Mixing water and cornstarch makes the non-Newtonian substance known as oobleck.  Students in all grades loved exploring the properties of it so much that they created Odes to Oobleck.  These were read or performed for the class with a selection posted below.  Check back soon for more.

Ode to Oobleck (to the tune of Rudolf the Red Nosed Reindeer) by M., grade 6

You know silly putty, paint, clay, and bouncy balls

Crayons, and markers, and tinker toys, and lighters

But do you know the most fun non-Newtonian substance of all?

Oobleck the messy batter (batter), how we love you so.

We love how you smell (smell) very much like bad milk.

Almost everything about you (about you) is fun in some sort of way.

From your white color (color) to your silky texture

Your thick and thin smooth like batter, tough and also watery

But when it’s time to wash you off, we do it all over again!

Oh oobleck, we love you so!

 

Ode to Oobleck by C., grade 6

When I rub my hands through your silky, white substance I feel a batter that is wacky. You are messy and fun, and crumbly when you go from powdery to gloppy, but white and smooth.  I don’t like your texturing once you are dry and crusty, but I like how you can go thick to thin, when speeding up or slowing down the way I move my hands.  You smell like spoiled milk and look like it too, but most of all I like the way you act like goo.

 Oobleck by R., grade 6

A powder

smooth to the touch

and white

when mixed

with water

it morphs

into a

smooth

silky

mixture

and then

dies

quickly

in my hands.

 

Oobleck Oh Oobleck by C., grade 6

Just like its name,

constantly changing

never the same.

It’s silky, it’s milky, it’s smooth, and it’s hard.

It’s somewhat like a batter though not appetizing.

It could make me feel like my insides were rising.

Oobleck oh Oobleck oh

Oobleck oh Oobleck

 

Ode to Oobleck by T., grade 8

It’s ooey and gooey

It’s chunky and bunchy

Slimy and creamy

It’s hard to hold

It’s grimy and slimy

It’s icky and sticky

Oobleck, oobleck everywhere

On the table and on the chair

On my clothes and in my hair

Oobleck, oobleck everywhere

It’s fun to play with

With one or two

The only thing is

It makes a mess on you.

 

Ode to Oobleck by T., grade 8

Oobleck is chunky,

It’s white and it oozes.

It’s sticky and wet,

And hard to hold.

It’s fun when it’s wet,

While it oozes and gooses.

It gets hard when you squeeze it,

And soft when it sits.

Oobleck is slimy,

Creamy and light.

It glazes your hands,

And give you delight.

Oobleck is gooey,

And it taste kind of bad.

But I promise you this,

It’s totally rad.

Touching Oobleck is fun,

But making it is too.

‘Cus everything gets wet,

and your hands get covered in goo.

 

Oobleck by C., grade 8

Mushy gushy, chunky funky

Hard to hold and fold.

It’s sticky icky silky milky

It’s fun in the sun.

Powder just like clam chowder

Dry just like the sky

Sand but in it in my hand

It’s like bleach but at the beach

Ooze hard to choose

Hold it tight with a hint of fight

Rubbery, pretty dang flubbery

We’re writing an ode your gonna have to break the code

Goobery and oobery

Now to clean your hands and wash all away

Oobleck has to go today.

 

Oobleck Ode by E., grade 8

Quicksand upon your hand. She likes to watch the sun dry your skin. Rubbery, yet soft

He’s like a jelly raindrop-extremely hard to pin. Silky and smooth, but just when you think you’ve got him, he disappears, slips through your fingertips. Always hard to hold, it’s nothing new though.  He seems to always be so cold.  He’s like a vanishing cloud, white like liquid, always out of reach, until you squeeze his silky skin tight and for a while he stays.  Until like liquid, a white crying cloud he runs so far away.