WHAT is STRANGE about this picture?? Read "Photo Explanation" below to
find out....
Ms.
Voss
Get ready to
WONDER and ask
WHY
about our world!
Because studying science is...
an AMAZING adventure!!
anvoss@sbsdk12.org
Current Topic: Plants
GVJH Science Night this THURSDAY 11/20 at6:30pm!!
Earn Extra Credit points just for attending!!! Lots of fun activities!!
Homework for Friday 11/21/08:
Complete
Ch.12 Workbook Packets, pgs. 167-184
Parents!! Are you involved in an engineering field of Science? Would
you like to offer up your knowledge to our students? Come join us at
MESA - Every Thursday from 11:20am - Noon. Check out the website at http://mesa.ucop.edu/mesa_day/index.html
Please contact
me if you think you would be able to assist in any way!!
Check Your Science Grade
Here!!
Photo Explanation:
The Physics of Space Gardens
Credit: ISS Expedition 6 Flight Engineer Nikolai Budarin
Explanation: It could only happen in
space: A tiny bubble of air hangs
suspended inside a droplet of water. The droplet rests in the cup of a
delicate green leaf, yet the stalk doesn't bend at all.
Cosmonaut Nikolai Budarin photographed this scene on April 9, 2003. He
was peering into the Russian Lada greenhouse onboard the International
Space Station (ISS), and his snapshot illustrates some of the strange
physics of gardening in space.
First, consider what would happen on Earth: The air bubble, lighter
than water, would race upward to burst through the surface of the
droplet. Meanwhile, the leaf would be busy tipping the heavy water onto
the floor below. Everything would be in motion, the picture a blur.
In Earth-orbit, though, the scene is truly motionless. The air bubble
doesn't rise because it is no lighter than the water around it--there's
no buoyancy. The droplet doesn't fall from the leaf because there's no
force to pull it off. It's stuck there by molecular adhesion.
Sticky water. No buoyancy. These are some of the factors spacefarers
must take into account when they plan their gardens. Suppose Budarin
sprays water onto the base of the plant. Will it trickle down to the
roots? More likely it will stick to the stem or adhere the substrate in
which the plant grows. And what happens to oxygen emitted by plants?
Without buoyancy to stir things up, air circulation can be poor. Oxygen
lingers. It doesn't waft away to make room for the carbon dioxide
plants need. A plant can actually suffocate in its own emissions!
Nevertheless, plants can flourish in spaceships. Recent experiments
onboard the ISS prove it.
WEB LINKS:
Geologic
Time on the Web
Geologic
Time Part Two - extra credit!!
Mitosis
in Action
A
Great List of Beasts (with links) from the Film
Another List
of
Prehistoric Beasts from our Film
Build
Your Own Prehistoric Beast Here!
Walking
With Prehistoric Beasts Webpage
Try
this fun activity and trace the genetic disorder!
Genetic
Disorders
Chromosome
Map
Cool Optical
Illusions!
Put
the Bird in the Cage Illusion!
American
Flag After Image! Another cool eye trick!
Click here for
a page of cool Science facts!
Powers
of Ten Clip
Body, INC
System Information
More
Body, INC Information
Even
MORE Body, INC Information
Body Systems
Quiz
Fun Site on Health &
Body Systems
California State
Science Standards
Build
a DNA Molecule
Try
solving this crime !
Fun stuff
on DNA and Genetics
Explore the Deep
Abyss
All
about amphibians
Disect a Frog...on the web!
Cell Parts
More Cell
Parts
Cell
Parts AGAIN
Science
Fair Ideas
More Science
Fair
And still MORE
Science Fair
Journey
Back in Time with Charles Darwin
Evolution
Activities
Flashy
Fish!
Map of the
Major Plates
Introduction
to the Plantae
Botanical
Gardens Around the World
Flower
Reproduction
Plate Tectonic Web Links:
http://pubs.usgs.gov/publications/text/understanding.html
http://www.pbs.org/wgbh/aso/tryit/tectonics/#
http://emvc.geol.ucsb.edu/forteachers/SeafloorSpreading.htm
http://emvc.geol.ucsb.edu/forteachers/convergence.htm
http://denali.gsfc.nasa.gov/research/lowman/Lowman_map1_lg.jpg
http://emvc.geol.ucsb.edu/animations/quicktime/sm02Pac-NoAmflat.mov
http://emvc.geol.ucsb.edu/forteachers/flashmovies/Pangea.swf
http://www.uky.edu/ArtsSciences/Geology/webdogs/plates/pangaea-3atonce.html