Weather fronts

COLD FRONT: Occurs when rapidly moving cold air runs into slow moving warm air mass. The cold air remains closer to Earth. The warm air rises and cools

WARM FRONT: Slow moving warm air mass collides with cold air masses. Warm air rises.

STATIONARY FRONT: Cold and warm masses meet but neither one has the force to move one another. Kind of like a tug of war.

OCCLUDED FRONT: A warm air mass is caught between two cold air masses

Cloud Formation

My Voyages!

Travel time:9 days to London
Direction traveling:East
Were you successful?yes
How many attempts?Once
How were you successful?I made it to London in 9 days
What winds did you take advantage of or compete with during your travel? Took advantage of Prevailing Westerlies

Travel time:12 Days to Sydney
Direction traveling:Southwest
Were you successful?yes
How many attempts?1
How were you successful?I made it even though i was along and difficult journey
What winds did you take advantage of or compete with during your travel? Took advantage of trade winds going Southwest but it was hard with the other trade winds

Travel time:15 days to Cape
Direction traveling:North, Northeast
Were you successful?yes
How many attempts?2
How were you successful?I finally made it to Cape town
What winds did you take advantage of or compete with during your travel? Took advantage of Prevailing Westerlies

Atmosphere Factors Affecting Climate

hey here is my post! above

Photochemical smog

Chemical smog us the brown haze that develops over sunny cities. It forms when hydrocarbons and nitrogen oxides interact with sunlight. Many of the causes are man-made. Such as burning fossil fuels, keeping houses warm in the winter, power plants, and other man-made actions. In London, winter of 1952, being very cold, many people were using coal as the major fuel. Smoke mixed with fog made it difficult to disperse. 4,000 more people died then was expected during that time of year. Photochemical smog can also cause impaired respiratory function, cause rubber and fabric to deteriorate. We can help by using alternative energy resources, driving less,and turning the heat down.

Atmosphere

The Earth's abundant atmosphere can make life possible here on Earth and not on other planets with no atmosphere.The atmosphere is almost like a force field. It can break small meteorites before they can even hit Earth. The moon in fact has many meteor craters because it does not have an atmosphere. But Earth has received as many incoming meteorites as the moon has; but the atmosphere burns them up before they can land onto Earth. Also the craters on Earth are quickly eroded by weather, which is due to the atmosphere. Earth's atmosphere has many gases that are needed to support life. It is full of Nitrogen, Oxygen, Water Vapors,Carbon Dioxide and other gases. Nitrogen is the most plentiful gas in our atmosphere. It is very necessary to life. The second most gas is Oxygen. It is also very important for the needs of life because plants and animals take Oxygen directly from air and use it to release energy from their food. Also Carbon Dioxide which is essential to life because it produces food. Earth's atmosphere makes conditions on Earth suitable for living things. Other planets have no atmosphere thus the weather can be "extreme", no liquid water, or the right gases need to live.

Space Exploration

The Science of Rockets

The Science of Rockets!
By Riley Marlene Bratzler

Its a device that expels gas one direction to move in opposite direction

One of the first rockets in China, in 1100's

Chinese used rockets for fireworks...

As well as military rockets.

The first culture used rockets was China, in 1100's

 Reaction force that propels a rocket forward is thrust.

It moves forward because gases shooting out.

Advantage to multi-step rocket is total weight reduced.

 

Summaries

THE SCIENCE OF ROCKETS
NASA uses atlas rockets to launch probes into space, and satellites into orbit around Earth. It is made of 3 stages. the first stage is called Atlas: it uses both solid-fuel boosters and liquid-fuel boosters. They use the liquid-fueled boosters to maneuver into proper orbit which is called centaur. The third is payload which is released from the centaur.

THE SPACE PROGRAM
NASA wanted to see if humans could explore the unknown space. Apollo 13 went very smoothly at fist but then oxygen tanks exploded. All of the astronaut barely survived. NASA still explores space today.

EXPLORING SPACE TODAY
Floating robots: A new type of technology that floats next to an astronaut using small internal fans. It is powered by solar cells, and can detect temperature, pressure, and air quality. It even allows astronaut to talk to each other.

USING SPACE SCIENCE ON EARTH
Less than 1% of the U.S. budget is spent on the space program. Some people think it is a waste of time and should be here on Earth trying to solve medical mysteries. But NASA says we can learn more about Earth in space and it is good for the economy because NASA has a lot of job openings.

presentation

Voki

Get a Voki now!

Gizmo-Seasons

After doing the Gizmo on seasons, I have concluded that the tilt of the Earth is the key component to why we have the changing of seasons. Without the axis every single part of the Earth would have the same amount of direct sunlight. Which would cause all parts of the Earth to have the same seasons or not that much change at all.

Zoom

Although the world seems to be a known place, we are only looking at a snall picture of the miraculous painting of life. The book "Zoom" shows you how to broaden your thinking and help you see the world in a whole new way. The book also shows how little humanity actually observes the world's wonders and how we need to step back and look at the whole picture. Which is a very good life skill in the real world. With the first picture I thought that it was a monster's foot, but when they zoomed out it was the comb of a rooster. How could I be more wrong? As the book went on, pretty much the same thing happened.
Perspective is how you look at things. It's your own opinion on a subject. When we looked at the book everybody had their own inferrence, they were either right or wrong...it doesn't matter!
In everyday practice, scientists use the same technique as we did on Zoom. They use it to discover new things about astronomy or anything in life. We will look closely to the inner core of the Earth all the way out to the galaxy!

Enigma Box

Without science the world would be a dark, unknown place. A place where the unknown world would never be solved. Luckily, that world does not exist thanks to spectacular scientists. But scientists have their way to solve life's mysteries, like the Enigma Box. I applied the skills of observations, inferring, classifying, and making models in order to solve this complex puzzle.
When Mrs. Casey showed us the Enigma Box I noticed to beguiling holes at the top. One was big, and she used it to pour the water. The second hole is small and why you use it or what it does I don't know. There is a filter like tubing at the bottom where the water will pour out. After 470mL. the water finally started to ease out at a steady speed.
I think that there are weights inside of the box. When the right amount of water is put in the box the weights counter act and all the water pours out.
As we finally gave up trying to figure out what the secret was, Mrs. Casey told us what the Enigma Box really was, I must say it made total sense to me after she explained it. In the box there is a rubber tube shaped in a loop. When the water pours in the box, the pressure does not seem to phase. But when the right amount of water is in, it will go over the flow line and flow out. The Enigma Box is finally revealed!