8th Grade: Counting Atoms, physical and chemical changes, and balancing equations down! We are now moving onto Speed, Velocity, and Acceleration  Please review the above video and try to answer the following Speed problems.

Speed=Distance/Time
S=d/t

Problem 1.
Joseph throws a football 75 meters in 6.3 seconds, what is the speed of the football?


Problem 2.

Julie took an airplane that traveled 400m in 16 seconds heading North. What is the planes velocity?

7th Grade- As you all know the 1st 9 weeks ended and we will now start Ecoregions of Texas. Please watch the above video about the 11 different regions in Texas. Also, below is a power point over them that you will need to be familiar with.

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&ved=0CDMQFjAB&url=http%3A%2F%2Fschool.judsonisd.org%2Fwebpages%2Fskirchens%2Ffiles%2F12_s070502h_ecoregions%2520of%2520texas%2520ppt.ppt&ei=1NxuUta6BMPl2AWWlYD4Bg&usg=AFQjCNFJuKaQucq_7TIZW3KNtt7DoD_ITA&sig2=cXJHjy2makBM1qExVh_5cg

7th Grade- We are starting Food webs, Food Chains, and Energy Pyramids. Good Luck!

8th Grade, we are starting conversions. Please remember to work on your homework.

Scientific Method Song- enjoy!

Einsteins, today we will create our Science Notebooks and cover Scientific Method!

 

Tardigrades

7th & 8th Grade- Hope you are enjoying your summer!!! My summer has started off great. We still have several weeks left of summer, but I would like for you all to watch this video and do a little internet surfing about these amazing creatures!!!! Yes, I said creatures. They look almost unreal, right? Well, they are not! These are Tardigrades (commonly known as waterbears or moss piglets)and they are found all over Earth, even right here in San Antonio.
Here are some interesting facts about them. They can live in geochemically extreme conditions that would be detrimental to most life on Earth.  For example, tardigrades can withstand temperatures from just above absolute zero to well above the boiling point of water, as well as pressures greater than any found in the deepest ocean trenches, ionizing radiation — at doses hundreds of times higher than would kill a person and have lived through the vacuum of outer space. They can go without food or water for nearly 120 years, drying out to the point where they are 3% or less water, only to rehydrate, forage, and reproduce.
This year I would like a research paper and project done about these little guys. I have even found a few locations where we can find some of our own to check out under a microscope. Enjoy!
Mrs Ojeda