Symbiosis

The picture of this squirrel and the tree shows the symbiosis, commensalism. Commensalism is when two species interact with each other but only one benefits and the other neither gets helped or harmed. For instance, the squirrel benefits by having a home. However, the tree neither gets helped or hurt.

Abiotic Limiting Factor

This is an example of an abiotic limiting factor. An abiotic factor is a non-living variable in the environment that has an effect on the ecosystem. In this picture, the atmosphere is an abiotic factor. It limits oxygen, weather, shade and beauty. All livings need oxygen to survive. Therefore, all living things depend on the oxygen the atmosphere is distributing. Without clouds, there can be no weather or life. Clouds bring rain, shade, and snow. What happens if there is no rain? Shade and all types of weather come the clouds. Therefore, the atmosphere is responsible for carrying the essential possessor of weather. Beauty occurs in the atmosphere when weather distributes it. Such as rainbows, snowmen, etc. To sum up, everything in the world depend on each other to survive.

Aquarium Adventure

Having a fun time at the aquarium was a really good experience. First thing i saw were the penguins, having their little :dance off." One of them were trying to be Happy feet! Next up were the seals. There was this really weird fat seal that was laying on a rock. It didn't move.
It was so amazing when we went to the sharks. Touching the sharks felt great too. We went across vast tanks of different fish. There was a needle fish and some ducks. Also, there was a pufferfish, swimming at the top. It was hard scaring it. Next were some sting rays and there were some floating above us in a tank. Jelly fish are really amazing creatures. Despite the fact of how many times they sting you. There were upside down jelly fish and little ones. Next to the jellyfish was a spider crab. Next to that was a giant octopus.
Sharks are really amazing. There was a shark tunnel which was a tunnel with live sharks surrounding you on all sides. We got to the shark tank which included all these cool looking species. There were two sea turtles and a mysterious shark called the shark ray. After lunch, we headed back to school to end our fabulous journey.

What is a Tornado?

Tornadoes are one of nature's violent storms. Their intense winds can destroy many things such as tossing houses, traffic lights and even uproot trees. In America, tornadoes usually occur in an area called Tornado Alley. The states included in this area are Texas, Oklahoma, Illinois, Missouri, Iowa, Nebraska and Louisiana. Tornadoes are rated on the Fujita Scale from F0-F5 when F0 being the weakest and F5 being the strongest.F0 winds are about 40- 72 mph while F5 tornado winds are about 261- 318 mph.


Tornadoes from when warm moist air and cold dry air form clouds. The cumulonimbus clouds shape into a war-head. Before thunderstorms develop, two directions of air coming from opposite directions make a horizontal spinning movement in the cloud itself. Then, when air rises, it creates an updraft causing the spinning movement to turn into a vertical position. The mesocyclone is formed from the super-cell cloud. Rain and hail begin to fall as the funnel shaped cloud starts to touch the ground. Once successful, the tornado can start its 20 minute journey. However, the minimum for most tornadoes is usually 20 minutes but the maximum is almost an hour. The longest tome for a tornado was the Tri-state Tornado which lasted 3 hours!

http://library.thinkquest.org/03oct/01424/how_do_tornadoes_form.htm

BLACK HOLES!

Scientists think that black holes originated from cocoon-like-stars. Black holes are really tricky, its immense gravitational pull is so strong that nothing can escape it, even light. The only way to find a black hole is when light passes through it. The balck hole appears and the light is distorted.

Black holes come in different sizes, there are Supermassive Black Holes which are usually located in the center of a large galaxy, like the Milky Way. That is how our galaxy is rotating. When mass pours into enromous black holes, some of the material is flung into space with high-energy radiation.