Showing posts with label Class Response. Show all posts
Showing posts with label Class Response. Show all posts

Thursday, May 15, 2008

Artic Tale


In the movie Arctic Tale, a lot of real world issues are portrayed. For example, mothers have to leave their young at a much earlier age than expected, the animals have to survive the extreme climate changes, and have to struggle to get the resources they need in order to survive. Arctic Tale is about a polar bear, Nanu, and a seal, Seela. Together they try to survive while the Arctic is quickly melting beneath them. Because the ice is melting earlier than expected Nanu's mother has to leave Nanu. Her mother made this hard decision because the only chance for either one of them surviving was if they didn't stay together. The extreme climate changes that are occurring in the Arctic is unrealistic to the animals, but it's happening. They want to stay in their herds but the chance of finding food for all of them is slim. The Arctic Ocean starts to expand because the ice takes longer to freeze and faster to melt. It is difficult to find a place to live. Global Warming is taking a toll on all of these animals lives. These animals are dying at an earlier age and becoming more and more extinct each day. In the movie, Nanu and Seela both struggle to find food. Nanu grows more hungry each day and finally, found food. However, it was up to a strong male polar bear if he was willing to share his find. Nanu eventually does get some food into her small body, however she is still hungry. Seela also encounters many dangers while trying to find a place to live. She is almost eaten and has to take a brutal fall down a steep cliff. The most interesting fact in this movie to me, was that if this continues to occur the Arctic will be ice free by 2040!


To find out more about the movie, Arctic Tale go to these sites...




Tuesday, January 15, 2008

What matters is matter

Matter and gravity are important factors in science. Matter is anything that has mass and volume. For instance, a TV, radio, or even yourself is all matter. On the other hand, some things that are not matter are light, sound, and electricity. Mass is the amount of matter in an object, remember mass does not change. Volume is the amount of space an object takes up. Scientists who study mass, volume and matter are known as Chemists. There are five states of matter. They are liquids, solids, gases, plasma, and a new one called Bose-Einstein condensates. Scientists can find the mass,volume, or density of an object by using a simple formula. The formula for finding density is mass/volume. The formula for finding mass is density x volume. And lastly, the formula for finding volume is mass/density. When finding the volume of an object you use the units centimeters cubed for a solid and milliliters for a liquid. Have you ever wondered why wood floats in water. This is because wood is less dense than water. Water is 1g/mL so in order for wood to sink it have to be more than 1g/mL. This scenario also happens with an ice cube and icebergs.
Gravity is also very important in science. Gravity is the force of attraction between all objects. It is the reason why we stay on the ground. For example, in ice skating it is hard to lift someone over your head because they weigh a lot. This would be different if this happened on the moon. On the moon there isn't any gravity, so people are weightless, therefore it would be very easy for someone to lift another person above their head. As another example, it takes a lot more fuel for a rocket to launch into the air on Earth because there is gravity. If the rocket was taking off from the moon it would be easier because there isn't any gravity. For this reason it wouldn't take a lot of fuel to launch the rocket. From learning about matter and energy I feel that I have gained a lot of knowledge. I have learned what is and isn't matter, why wood floats in water, a new state of matter along with the original four, and why people are weightless on the moon.

My sources...
http://www.chem4kids.com/files/matter_intro.html

http://www.thetech.org/exhibits/online/topics/54a.html