81
Students use the Tides Online web page to answer questions on this student worksheet.
Grade Level   6 7 8 9 10 11 12
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82
We feel the wind everyday. The air is almost always in motion. One day it may be from the north and the next day from the south. There are many sources for wind: mechanical sources such as fans and, in nature, falling rain as it drags air along. But what is the origin of wind on the earth? Using a...
Grade Level   9 10 11 12
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83
The Earth is in constant motion. Each day the earth makes one complete rotation. Each year, the earth makes one orbit of the sun. The first motion is obvious. The second one, however, is muh harder to notice except over a much longer period and can be made visible only by some time and some...
Grade Level   3 4 5 6 7 8 9 10 11 12
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84
Ocean water is salty and, in general, cold. Differences in the water density associated with temperature and salinity are vital in shaping the Great Ocean Conveyor. This lesson plan demonstrates how salinity and temperature affect density of water.
Grade Level   7 8 9 10 11 12
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85
Just as air can have different densities, water can have different densities as well. As the salinity of water increases, the density increases as well. Fresh eggs will float in saltwater, but will sink in freshwater. This will show that as the salinity increases the density also increases.
Grade Level   4 5 6 7 8 9 10 11 12
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86
We all know the oceans are salty but so are other sources of water. The oceans have a salinity (salt content) of 35%. The Dead Sea has an average salinity of 290%, almost nine times saltier than the oceans. But what actually does that mean? Just how salty tasting are these various bodies of water?...
Grade Level   6 7 8 9 10 11 12
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87
What does up, must come down. Precipitation is the most commonly seen aspect of the hydrologic cycle. Students will learn how the water cycle works using 3-D paper craft activity. The students will see a demonstration of the concept of precipitation.
Grade Level   3 4 5 6 7 8 9 10 11 12
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88
There are three states of matter: gas, liquid, and solid. Water in our atmosphere exists in these three states constantly. As the temperature of water vapor (a gas) decreases, it will reach the point at which it turns into a liquid (called the dew point or the point at which dew forms). This change...
Grade Level   3 4 5 6 7 8 9 10 11 12
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89
There are two methods water moves from the ground to the atmosphere as part of the hydrologic cycle. Transpiration is basically evaporation of water from plant leaves. Studies have revealed that transpiration accounts for about 10% of the moisture in the atmosphere, with oceans, seas, and other...
Grade Level   5 6 7 8 9 10 11 12
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90
Barometers using mercury are heavy and fragile. The first working version of an aneroid (without water) barometer was built in 1843 by French scientist Lucien Vidie. This made the barometer very portable and it became a commonly used meteorological instrument. It was still calibrated to the...
Grade Level   9 10 11 12
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91
The amount of air over us is constantly changing. As a result, the weight of that air, called pressure, is constantly changing. These changes in air pressure are indications of changes in our weather. We measure this change using a device called a barometer (bar-meter or measurer).
Grade Level   9 10 11 12
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92
Pressure is not only a matter of altitude but also dependent upon the temperature. As the temperature increases so does the pressure. The molecules and atoms that comprise the air we breathe gain energy as they absorb heat. That increase in energy results in faster moving atoms which we observe as...
Grade Level   7 8 9 10 11 12
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93
Bernoulli's principle states that in fluid flow, an increase in velocity occurs simultaneously with decrease in pressure. The students will discover that the faster air moves (air acting as a fluid), the lower the pressure beccomes within that air flow. They will see this effect blowing between two...
Grade Level   7 8 9 10 11 12
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94
Demonstrate that AM radio signals can travel many 1000's of miles at night. The student will listen to as many radio stations as possible obtaining the call signs and places of origin during the evening (after sunset) hours.
Grade Level   7 8 9 10 11 12
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95
Have your students track earthquakes around the world. They will work in groups to discuss the current plate tectonic theory, linking those ideas with earthquake records. Next, students will use the USGS website to identify locations of the 10 largest quakes over a 10-year period. Students will also...
Grade Level   6 7 8 9 10 11 12
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96
This report illustrates, by means of a computer animation, how an earthquake occurs and what types of damage may result. The report is intended to help students and others visualize what causes earthquake shaking and some of the possible results of the shaking. By studying the animation and paper...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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97
Published in 2013
This report describes how to build a model of the outer 300 km (180 miles) of the Earth that can be used to develop a better understanding of the principal features of plate tectonics, including sea-floor spreading, the pattern of magnetic stripes frozen into the sea floor, transform faulting,...
Grade Level   6 7 8 9 10 11 12
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98
In this activity you will measure changing weather conditions prior to, during, and after a storm.
Grade Level   6 7 8 9 10 11 12
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99
Set the air temperature and dew point in the four different altitudes and see what type of precipitation will fall to the ground. Watch closely, they may even change form as they fall!
Grade Level   6 7 8 9 10 11 12
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100
Learn Science and Safety with the National Weather Service's Owlie Skywarn. NWS Education brings adventures and information to kids, teens, parents, and teachers. Owlie Skywarn puts you on the road to becoming a Young Meteorologist, all while sharing NWS Publications and Brochures on weather safety.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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