Hazel

Sea world:coral reefs
1)what is the largest barrier reef in the world?how large is it? The largest barrier reef in the world is the Great Barrier Reef. It lies off the coast of Queensland, Australia in the Coral Sea, and is about 2600km long.It is made up of over 2,900 individual reefs and 900 islands. It is also the only living organism visible from space

2)what is the inital source of energy for coral reefs? The sun is the initial source of energy for this ecosystem. Through photosynthesis, phytoplankton, algae, and other plants convert light energy into chemical energy. As animals eat plants or other animals, a portion of this energy is passed on.

3)what are the three types of reefs? Fringing, coral, and barrel

The worlds biomes.
1)what are the two basic regions of the aquatic biome? Fresh water and marine.

2)how much of the earth is covered by desserts? Almost a third of Earth's land surface is occupied by desert, most of it icy or rocky rather than covered with sand dunes. And a substantial percentage of it supports animal and plant life

3)whats the diffrence between the artic tundra and the alpine tundra? The Arctic tundra is a treeless area between the icecap and the tree-line of Arctic regions, having a permanently frozen subsoil and supporting low-growing vegetation such as lichens, mosses, and stunted shrubs. The Alpine tundra is large, flat or gently sloping, treeless tracts of land above the timberline.

Edugreen
1)what is the greenhouse effect? The Greenhouse Effect is when there are various gases in the atmosphere, such as carbon dioxide and even water vapor, that traps the sun's energy, or heat, inside. When unable to escape the atmosphere the added solar energy results in warmer air temperature, just like the glass in a greenhouse traps the energy from the sun and keeps your plants warm.

2)what is smog? mixture of air pollutants,nitrogen oxides and volatile organic compounds—that combine with sunlight to form ozone.

3)what are three types of solid water? solid water :ice is frozen water, liquid water :is wet and fluid, water as gas, vapor is always present in the air around us  The owl pages

1)what is a group of owls called?parliament.

2)how many eggs does a female owl lay? 2-3

3)what is the only continent where you cant find owls? Antartica.

**volcanoes**
how does magma become lava? magma is molten rock that is still beneath the earth's crust. When magma reaches earth's surface, through a volcano or other openings in the earth's surface, it is still the same substance, but it is called lava

what are plate boundaries? At the locations where two tectonic plates interact, a boundary between these plates exist. There are three types of boundaries that geologist observe. These boundaries are divergent boundaries, convergent boundaries, and transform boundaries.

what are the most common and serious volcanic hazards? volcanic gases: Volcanoes emit gases during eruptions. Even when a volcano is not erupting, **cracks** in the ground allow gases to reach the surface through small openings called **fumaroles**. More than 90% of all gas emitted by volcanoes is water vapor (steam), most of which is heated g**round water** (underground water from rainfall and streams). Other common volcanic gases are carbon dioxide, sulfur dioxide, hydrogen sulfide, hydrogen, and fluorine.

what types of tools does a volcanogolist use to monitor volcanoes? Volcanologists use many different kinds of tools including instruments that detect and record earthquakes (seismometers and seismographs) instruments that measure ground deformation (EDM, Leveling, GPS, tilt).

**The butterfly zone.**
what type of plant does the yellow sulfur butterfly prefer? guava and stawberries and oter fruit but not bananas could you find a pearl crescent butterfly on the pacific? possibly how do butterflies identify their favorite plants? whit their antennas.

**western diamond back rattlesnake**
where in the united states can you find the western rattle snake? Its range spans much of Arkansas, most of Texas and Oklahoma, the southern parts of New Mexico and Arizona, the southern tip of California, and the northern parts of Mexico's Chihuahua and Sonora. what do western diamondbacks eat? Small mammals such as prairie dogs, rabbits, gophers, chipmunks, ground squirrels, mice and rats, the more the better, usually hunting at night. It ambushes victims along their trails or attacks them in their burrows, sometimes striking and swallowing an animal which weighs more than the snake itself. how long is the average full grown western diamondback? The adult Western Diamondback rattlesnake ranges in size from 3 to 5 feet, with some reaching 7 feet in length

**Nova online/ avalanche**
what two elements are nacessary for a snow slide? how many avalanches do scientis estimate occur each year? which is deadlier in the united states avalanches or earthquake