lessonID
stringlengths 6
6
| lessonName
stringlengths 3
52
| ID
stringlengths 6
21
| content
stringlengths 10
6.57k
| media_type
stringclasses 2
values | path
stringlengths 28
76
⌀ |
|---|---|---|---|---|---|
L_0010 | absolute ages of rocks | T_0089 | FIGURE 11.15 Isotopes are named for their number of protons plus neutrons. If a carbon atom had 7 neutrons, what would it be named? | image | textbook_images/absolute_ages_of_rocks_20065.png |
L_0010 | absolute ages of rocks | T_0089 | FIGURE 11.16 Carbon-14 forms in the atmosphere. It combines with oxygen and forms carbon dioxide. How does carbon-14 end up in fossils? | image | textbook_images/absolute_ages_of_rocks_20066.png |
L_0010 | absolute ages of rocks | T_0090 | FIGURE 11.17 Unstable isotopes, such as carbon-14, decay by losing atomic particles. They form different, stable elements when they decay. In this case, the daughter is nitrogen-14. | image | textbook_images/absolute_ages_of_rocks_20067.png |
L_0010 | absolute ages of rocks | T_0092 | FIGURE 11.18 The rate of decay of carbon-14 is stable over time. | image | textbook_images/absolute_ages_of_rocks_20068.png |
L_0011 | the origin of earth | T_0096 | FIGURE 12.1 The Orion Nebula is the birthplace of new stars. | image | textbook_images/the_origin_of_earth_20069.png |
L_0011 | the origin of earth | T_0096 | FIGURE 12.2 The Inner Planets. | image | textbook_images/the_origin_of_earth_20070.png |
L_0011 | the origin of earth | T_0096 | FIGURE 12.3 The Kuiper Belt, a ring of icy debris in our solar system just beyond Neptune, contains many solar system bodies. | image | textbook_images/the_origin_of_earth_20071.png |
L_0011 | the origin of earth | T_0098 | FIGURE 12.4 Earths layers. | image | textbook_images/the_origin_of_earth_20072.png |
L_0011 | the origin of earth | T_0101 | FIGURE 12.5 Gases from Earths interior came through volcanoes and into the atmosphere. | image | textbook_images/the_origin_of_earth_20073.png |
L_0012 | early earth | T_0108 | FIGURE 12.6 E. coli (Escherichia coli) is a primitive prokaryote that may resemble the earliest cells. genetic instructions to the next generation. | image | textbook_images/early_earth_20074.png |
L_0012 | early earth | T_0110 | FIGURE 12.7 These rocks in Glacier National Park, Montana may contain some of the oldest fossil microbes on Earth. | image | textbook_images/early_earth_20075.png |
L_0012 | early earth | T_0112 | FIGURE 12.8 This fossil is from the Ediacara Fauna. Nothing alive today seems to have evolved from the Ediacara organisms. | image | textbook_images/early_earth_20076.png |
L_0014 | water on earth | T_0132 | FIGURE 13.1 Take a look at this image. Do you think that Earth deserves the name water planet? | image | textbook_images/water_on_earth_20085.png |
L_0014 | water on earth | T_0132 | FIGURE 13.2 What percentage of Earths surface fresh- water is water vapor in the air? Only a tiny fraction of Earths freshwater is in the liquid state. Most liquid freshwater is under the ground in layers of rock. Of freshwater on the surface, the majority occurs in lakes and soil. What percentage of freshwater on the surface is found in living things? | image | textbook_images/water_on_earth_20086.png |
L_0014 | water on earth | T_0134 | FIGURE 13.3 The water cycle has no beginning or end. Water just keeps moving along. | image | textbook_images/water_on_earth_20087.png |
L_0015 | surface water | T_0137 | FIGURE 13.4 All these forms of flowing water are streams. | image | textbook_images/surface_water_20088.png |
L_0015 | surface water | T_0139 | FIGURE 13.5 Water in a stream flows along the ground from higher to lower elevation. What force causes the water to keep flowing? | image | textbook_images/surface_water_20089.png |
L_0015 | surface water | T_0139 | FIGURE 13.6 River basins in the U.S. | image | textbook_images/surface_water_20090.png |
L_0015 | surface water | T_0140 | FIGURE 13.7 The Great Lakes of North America get their name from their great size. | image | textbook_images/surface_water_20091.png |
L_0015 | surface water | T_0143 | FIGURE 13.8 Craters and rifts become lakes when they fill with water. Where does the water come from? | image | textbook_images/surface_water_20092.png |
L_0015 | surface water | T_0145 | FIGURE 13.9 These are just three of many types of wetlands. | image | textbook_images/surface_water_20093.png |
L_0015 | surface water | T_0146 | FIGURE 13.10 A river in Indiana floods after very heavy rains. Some areas received almost a foot of rain in less than 24 hours! | image | textbook_images/surface_water_20094.png |
L_0016 | groundwater | T_0148 | FIGURE 13.11 Water seeps into the ground through permeable material and stops when it reaches an impermeable rock. Predict the purpose of the well in the diagram. | image | textbook_images/groundwater_20095.png |
L_0016 | groundwater | T_0151 | FIGURE 13.12 An aquifer is a layer of saturated porous rock. It lies below the water table. An impermeable layer, such as clay, is below the aquifer. | image | textbook_images/groundwater_20096.png |
L_0016 | groundwater | T_0152 | FIGURE 13.13 In this map, the area over the Ogallala aquifer is shaded in blue. | image | textbook_images/groundwater_20097.png |
L_0016 | groundwater | T_0153 | FIGURE 13.14 Big Spring is named for its large size. It releases more than 12,000 liters of water per second! | image | textbook_images/groundwater_20098.png |
L_0016 | groundwater | T_0153 | FIGURE 13.15 Lake George gets its water from a number of springs. | image | textbook_images/groundwater_20099.png |
L_0016 | groundwater | T_0154 | FIGURE 13.16 Grand Prismatic Spring in the Yellowstone National Park is the largest hot spring in the U.S. How can you tell from the photo that the water in this spring is hot? | image | textbook_images/groundwater_20100.png |
L_0016 | groundwater | T_0155 | FIGURE 13.17 Old Faithful in Yellowstone National Park is a geyser named for its regular cycle of eruptions. | image | textbook_images/groundwater_20101.png |
L_0016 | groundwater | T_0156 | FIGURE 13.18 A well runs from the surface to a point below the water table. Why must a well go lower than the water table? | image | textbook_images/groundwater_20102.png |
L_0016 | groundwater | DD_0009 | The picture shows the groundwater and how it moves. Rivers and lakes hold a lot of Earths liquid freshwater. Twenty times more of Earths liquid freshwater is found below the surface than on the surface. Groundwater (or ground water) is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from, and eventually flows to, the surface naturally. Natural discharge often occurs at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. | image | teaching_images/aquifers_6510.png |
L_0016 | groundwater | DD_0010 | This diagram depicts how the groundwater is formed. WIth the diagram, we can understand how the groundwater is formed. First, the water is poured down from the cloud to the earth's surface. The water is recharged to the top most layer of the earth called piezometric surface. Below the piezometric surface, the layer containing water is called unconfined aquifer. The top level of the unconfined aquifer is called water table level. Under the unconfied aquifer, there is a layer that the water cannot penetrate. We call the layer as impermeable layer. Under the impermeable layer, a thick layer containing water is called confied aquifer. The earth region that supports the confined aquifer is called confining bed. The hole to obtain water in the unconfied aquifer is called artesian bore. | image | teaching_images/aquifers_6524.png |
L_0016 | groundwater | DD_0011 | This diagram shows the structure of groundwater storage in the earth. The top most layer of the earth is call unsaturated zone and does not have water stored. The below the unsaturated zone, there is a unconfined aquifer which contains the water closest to the earth surface. The boundary between the unsaturated zone and unconfined aquifer is called water table. The unconfined water layer absorbes the water from the surface and provide the water to the river or to the ground by a pump. The water circulation period in the unconfined aquifer is from days to years. Under the unconfined aquifer, there is a confining bed. Under the confining bed, there is confined aquifer. This is deeper layer than unconfined aquifer and the water returning cycle to the ground is century long. Under the confined aquifer, there is another confining bed. Below the confined aquifer, there is another confined aquifer. The water returning cycle to the ground is millenium long. | image | teaching_images/aquifers_6953.png |
L_0017 | introduction to the oceans | T_0158 | FIGURE 14.1 Volcanoes were one source of water va- por on ancient Earth. What were other sources? | image | textbook_images/introduction_to_the_oceans_20104.png |
L_0017 | introduction to the oceans | T_0159 | FIGURE 14.2 At the time shown, there was one vast ocean and two smaller ones. How many oceans are there today? Thats why some people refer to the oceans together as the World Ocean. | image | textbook_images/introduction_to_the_oceans_20105.png |
L_0017 | introduction to the oceans | T_0161 | FIGURE 14.3 The oceans and atmosphere exchange gases. Why does water vapor enter the atmosphere from the water? | image | textbook_images/introduction_to_the_oceans_20106.png |
L_0017 | introduction to the oceans | T_0163 | FIGURE 14.4 Coral reefs teem with life. | image | textbook_images/introduction_to_the_oceans_20107.png |
L_0017 | introduction to the oceans | T_0166 | FIGURE 14.5 What percentage of the salts in ocean water is sodium chloride? | image | textbook_images/introduction_to_the_oceans_20108.png |
L_0017 | introduction to the oceans | T_0168 | FIGURE 14.6 Distance from shore and depth of water define ocean zones. Which zone is on the ocean floor? | image | textbook_images/introduction_to_the_oceans_20109.png |
L_0017 | introduction to the oceans | DD_0012 | This diagram represents the layers of the ocean. The oceans are divided into two broad realms; the pelagic and the benthic. Pelagic refers to the open water in which swimming and floating organisms live. Organisms living there are called the pelagos. From the shallowest to the deepest, biologists divide the pelagic into the epipelagic the mesopelagic the bathypelagic the abyssopelagic and the deepest, the hadopelagic. The last three zones have no sunlight at all. The Habitat zone is formed by 5 mini zones: Abbysal, Bathyal, Hadal, Neritic, and Oceanic .One-third of the Earth is made up of the Abbysal zone. It is very cold and dark in this zone. In the Bathyal zone, the food and temperature easily fall into the deepest zones of the ocean. The Hadal zone is the deepest zone in the ocean. It has high-pressure conditions and it's really cold. The Neritic zone is rich in plants, animals, and nutrients that are carried by currents of land. In the Oceanic zone, there is an abundant life of plankton. | image | teaching_images/ocean_zones_7130.png |
L_0017 | introduction to the oceans | DD_0013 | This diagram shows the ocean floor. Like land terrains, the ocean floor also has ridges, valleys, plains and volcanoes. The seabed (also known as the seafloor, sea floor, or ocean floor) is the bottom of the ocean. The oceanic zone begins in the area off shore where the water measures 200 meters (656 feet) deep or deeper. It is the region of open sea beyond the edge of the continental shelf and includes 65% of the ocean's completely open water. The photic zone or sunlight zone is the depth of the water in a lake or ocean that is exposed to such intensity of sunlight which designates compensation point. The aphotic zone is the portion of a lake or ocean where there is little or no sunlight. It is formally defined as the depths beyond which less than 1% of sunlight penetrates. The abyssal zone is the layer of the pelagic zone of the ocean. At depths of 4,000 to 6,000 metres (13,123 to 19,685 feet), this zone remains in perpetual darkness and never receives daylight. The continental shelf is the area of the seabed around a large landmass where the sea is relatively shallow compared with the open ocean. This is geologically part of the continental crust. Studying the ocean floor is difficult because the environment is so hostile but scientists have discovered good ways to study the ocean floor through the years. Some of the ways are by using a sonar and special vehicles (some of which can even be done remotely). | image | teaching_images/ocean_zones_8125.png |
L_0018 | ocean movements | T_0170 | FIGURE 14.8 Waves cause the rippled surface of the ocean. | image | textbook_images/ocean_movements_20111.png |
L_0018 | ocean movements | T_0170 | FIGURE 14.9 A wave travels through the water. How would you describe the movement of wa- ter molecules as a wave passes through? | image | textbook_images/ocean_movements_20112.png |
L_0018 | ocean movements | T_0172 | FIGURE 14.10 Waves break when they reach the shore. | image | textbook_images/ocean_movements_20113.png |
L_0018 | ocean movements | T_0173 | FIGURE 14.11 A 2004 tsunami caused damage like this all along the coast of the Indian Ocean. Many lives were lost. | image | textbook_images/ocean_movements_20114.png |
L_0018 | ocean movements | T_0174 | FIGURE 14.12 Where is the intertidal zone in this pic- ture? | image | textbook_images/ocean_movements_20115.png |
L_0018 | ocean movements | T_0176 | FIGURE 14.13 High and low tides are due mainly to the pull of the Moons gravity. | image | textbook_images/ocean_movements_20116.png |
L_0018 | ocean movements | T_0176 | FIGURE 14.14 The Sun and Moon both affect Earths tides. | image | textbook_images/ocean_movements_20117.png |
L_0018 | ocean movements | T_0177 | FIGURE 14.15 Earths surface currents flow in the pat- terns shown here. | image | textbook_images/ocean_movements_20118.png |
L_0018 | ocean movements | T_0180 | FIGURE 14.16 In this satellite photo, different colors indicate the temperatures of water and land. The warm Gulf Stream can be seen snaking up eastern North America. | image | textbook_images/ocean_movements_20119.png |
L_0018 | ocean movements | T_0180 | FIGURE 14.17 Deep currents flow because of differences in density of ocean water. | image | textbook_images/ocean_movements_20120.png |
L_0018 | ocean movements | T_0181 | FIGURE 14.18 An upwelling occurs when deep ocean water rises to the surface. | image | textbook_images/ocean_movements_20121.png |
L_0018 | ocean movements | DD_0014 | The diagram shows the relationship between the moon and tides around Earth. Tides are daily changes in the level of ocean water. They occur all around the globe. High tides occur when the water reaches its highest level in a day. Low tides occur when the water reaches its lowest level in a day. Tides keep cycling from high to low and back again. The main cause of tides is the pull of the Moons gravity on Earth. The pull is greatest on whatever is closest to the Moon. Although the gravity pulls the land, only the water can move. As a result, a tidal bulge (high tide) is formed due to gravity. Earth itself is pulled harder by the Moons gravity than is the ocean on the side of Earth opposite the Moon. As a result, there is a tidal bulge of water on the opposite side of Earth due to inertia. This creates another high tide. With water bulging on two sides of Earth, there's less water left in between. This creates low tides on the other two sides of the planet. | image | teaching_images/tides_133.png |
L_0018 | ocean movements | DD_0015 | This diagram illustrates the components and behavior of a wave propagating through water. The highest point in a wave is called the Crest, whereas the lowest point is called the Trough. Waves are periodic, meaning they maintain the same pattern as they propagate. The distance from one crest to another is called the Wavelength. The wavelength can also be measured from any point in the wave to the next point at the same elevation. Beneath the wave crests, water molecules tend to move in an orbital path. Two important properties of a wave are its Frequency and Period. The frequency of a wave is related to how fast the wave is moving. Frequency is defined as the number of times a particular point in a wave, say a crest, passes by a given point each second. Period is defined as the time it takes for a wave to move through one wavelength or cycle. | image | teaching_images/ocean_waves_7117.png |
L_0018 | ocean movements | DD_0016 | This diagram represents the different positions of the Sun and moon in relation to the Earth, with two different types of tides. The positions of the Sun and moon affect tides, because the Sun's gravity determines how much influence the moon has on tides. Spring tides occur during new moon and full moon, because the Sun and moon are in a straight line, and their combined gravity causes extreme tides on Earth (high or low). Neap tides happen when the moon is in 1st quarter or third quarter, because since the Sun and moon are not in line here, the gravity is weaker and the tides do not have as great of a range. So, spring tides and neap tides are essentially opposite concepts. As you can see in Diagram A, the light blue area around the Earth represents the amount of tide, and there are extreme highs and lows. In Diagram B, the light blue area is more averaged out around the globe. | image | teaching_images/tides_151.png |
L_0018 | ocean movements | DD_0017 | This is a diagram showing how a mechanical wave moves. The wave travels in the direction from A to B. The number of waves that pass point A in one second is called wave frequency. The time is takes for a wave crest to pass point A and reach point B is called the wave period. The distance from point A to point B is a wavelength, which measures the crest of the first wave to the crest of the second. The trough is the low point of the wave, and the crest is the high point. There are three types of mechanical waves that move through a medium: transverse, longitudinal, and surface. | image | teaching_images/ocean_waves_9152.png |
L_0018 | ocean movements | DD_0018 | This image shows how spring tide occurs, a tide just after a new or full moon, when there is the greatest difference between high and low water. The times and amplitude of tides at a locale are influenced by the alignment of the Sun and Moon. Approximately twice a month, around new moon and full moon when the Sun, Moon, and Earth form a line, the tidal force due to the sun reinforces that due to the Moon. The tide's range is then at its maximum; this is called the spring tide. | image | teaching_images/tides_2614.png |
L_0019 | the ocean floor | T_0183 | FIGURE 14.19 Sound waves travel through ocean water, but they bounce off the ocean floor. They move through ocean water at a known speed. Can you use these facts to explain how sonar works? | image | textbook_images/the_ocean_floor_20122.png |
L_0019 | the ocean floor | T_0183 | FIGURE 14.20 A map of a 10,000 foot-high undersea volcano in Indonesia made by multibeam solar. | image | textbook_images/the_ocean_floor_20123.png |
L_0019 | the ocean floor | T_0184 | FIGURE 14.21 Vehicles for Underwater Exploration. These special vehicles have been used to study the ocean floor. | image | textbook_images/the_ocean_floor_20124.png |
L_0019 | the ocean floor | T_0185 | FIGURE 14.22 The features of the ocean floor. This dia- gram has a lot of vertical exaggeration. | image | textbook_images/the_ocean_floor_20125.png |
L_0019 | the ocean floor | T_0188 | FIGURE 14.23 Metals from the ocean crust are brought by hot water onto the seafloor to create chimneys, as shown in this photo. | image | textbook_images/the_ocean_floor_20126.png |
L_0019 | the ocean floor | DD_0019 | This diagram shows an abbreviated version of underwater landscape. The ground under an ocean gets slowly deeper shortly after passing the beach, which is called the continental shelf. After this it slopes down steadily in the continental slope. After the slop is an abyssal plain, which is significantly deeper but not as deep as a trench - here, there is no sunlight. A volcanic arc comes before an underwater volcano, which forms a volcanic island that may or may not be dormant. A continental slope can also be considered a continental rise if it is seen from the opposite direction. | image | teaching_images/parts_ocean_floor_9206.png |
L_0019 | the ocean floor | DD_0020 | The following diagram is that of an ocean floor. The major features on the ocean floor are continental shelf, continental slope, continental rise and the coast. The continental shelf in the ocean floor is nearest to the edges of continents. It has a gentle slope. The continental slope lies between the continental shelf and the abyssal plain. It has a steep slope with a sharp drop to the deep ocean floor. The abyssal plain forms much of the floor under the open ocean. Magma erupts through the ocean floor to make new seafloor. The magma hardens to create the ridge. | image | teaching_images/parts_ocean_floor_7237.png |
L_0020 | ocean life | T_0190 | FIGURE 14.24 Living things in the oceans are placed in these three groups. | image | textbook_images/ocean_life_20127.png |
L_0020 | ocean life | T_0190 | FIGURE 14.25 The phytoplankton (left) and zooplankton (right) shown here have been magnified. Otherwise, they would be too small for you to see. | image | textbook_images/ocean_life_20128.png |
L_0020 | ocean life | T_0191 | FIGURE 14.26 Nekton swim through ocean water. | image | textbook_images/ocean_life_20129.png |
L_0020 | ocean life | T_0192 | FIGURE 14.27 These animals live on the ocean floor. | image | textbook_images/ocean_life_20130.png |
L_0020 | ocean life | T_0192 | FIGURE 14.28 Tubeworms live near hot water vents on the deep ocean floor. | image | textbook_images/ocean_life_20131.png |
L_0020 | ocean life | T_0193 | FIGURE 14.29 Many marine food chains look like this example. | image | textbook_images/ocean_life_20132.png |
L_0022 | energy in the atmosphere | T_0211 | FIGURE 15.6 These campers can feel and see the en- ergy of their campfire. | image | textbook_images/energy_in_the_atmosphere_20138.png |
L_0022 | energy in the atmosphere | T_0215 | FIGURE 15.7 This curve models a wave. Based on this figure, how would you define wave- length? | image | textbook_images/energy_in_the_atmosphere_20139.png |
L_0022 | energy in the atmosphere | T_0215 | FIGURE 15.8 Compare the wavelengths of radio waves and gamma rays. Which type of wave has more energy? | image | textbook_images/energy_in_the_atmosphere_20140.png |
L_0022 | energy in the atmosphere | T_0219 | FIGURE 15.9 Convection currents are the main way that heat moves through the atmosphere. Why does warm air rise? | image | textbook_images/energy_in_the_atmosphere_20141.png |
L_0022 | energy in the atmosphere | T_0220 | FIGURE 15.10 The lowest latitudes get the most energy from the Sun. The highest latitudes get the least. How do the differences in energy striking different latitudes affect Earth? The planet is much warmer at the equator than at the poles. In the atmosphere, the differences in heat energy cause winds and weather. On the surface, the differences cause ocean currents. Can you explain how? | image | textbook_images/energy_in_the_atmosphere_20142.png |
L_0022 | energy in the atmosphere | T_0221 | FIGURE 15.11 Human actions have increased the natu- ral greenhouse effect. | image | textbook_images/energy_in_the_atmosphere_20143.png |
L_0023 | layers of the atmosphere | T_0223 | FIGURE 15.12 How does air temperature change in the layer closest to Earth? | image | textbook_images/layers_of_the_atmosphere_20144.png |
L_0023 | layers of the atmosphere | T_0226 | FIGURE 15.13 Temperature Inversion and Air Pollution. How does a temperature inversion affect air quality? | image | textbook_images/layers_of_the_atmosphere_20145.png |
L_0023 | layers of the atmosphere | T_0230 | FIGURE 15.14 How does the ozone layer protect Earths surface from UV light? | image | textbook_images/layers_of_the_atmosphere_20146.png |
L_0023 | layers of the atmosphere | T_0234 | FIGURE 15.15 Friction with gas molecules causes mete- ors to burn up in the mesosphere. | image | textbook_images/layers_of_the_atmosphere_20147.png |
L_0023 | layers of the atmosphere | T_0238 | FIGURE 15.16 The International Space Station orbits in the thermosphere. | image | textbook_images/layers_of_the_atmosphere_20148.png |
L_0023 | layers of the atmosphere | T_0238 | FIGURE 15.17 Glowing ions in the thermosphere light up the night sky. | image | textbook_images/layers_of_the_atmosphere_20149.png |
L_0023 | layers of the atmosphere | DD_0021 | The Earth has five different layers in its atmosphere. The atmosphere layers vary by temperature. As the altitude in the atmosphere increases, the air temperature changes. The lowest layer is the troposphere, it gets some of its heat from the sun. However, it gets most of its heat from the Earth's surface. The troposphere is also the shortest layer of the atmosphere. It holds 75 percent of all the gas molecules in the atmosphere. The air is densest in this layer. | image | teaching_images/layers_of_atmosphere_7066.png |
L_0023 | layers of the atmosphere | DD_0022 | The diagram shows the 5 layers of Earth's atmosphere and their relative distance from the Earth's surface. Troposphere is the shortest layer closest to Earth's surface at about 15km away from the surface. The stratosphere is the layer above the troposphere and rises to about 50 kilometers above the surface. The mesosphere is the layer above the stratosphere and rises to about 80 kilometers above the surface. Temperature decreases with altitude in this layer. The thermosphere is the layer above the mesosphere and rises to 500 kilometers above the surface. The International Space Station orbits Earth in this layer. The exosphere is the layer above the thermosphere. This is the top of the atmosphere. | image | teaching_images/layers_of_atmosphere_8102.png |
L_0030 | world climates | T_0304 | FIGURE 17.9 Find where you live on the map. What type of climate do you have? | image | textbook_images/world_climates_20190.png |
L_0030 | world climates | T_0306 | FIGURE 17.10 Africa is famous for its grasslands and their wildlife. | image | textbook_images/world_climates_20191.png |
L_0030 | world climates | T_0306 | FIGURE 17.11 Dry climates may be deserts or steppes. Sonoran Desert in Arizona (22 north latitude), Utah Steppe (40 north latitude). | image | textbook_images/world_climates_20192.png |
L_0030 | world climates | T_0307 | FIGURE 17.12 How do these climates differ from each other? | image | textbook_images/world_climates_20193.png |
L_0030 | world climates | T_0308 | FIGURE 17.13 Conifer forests are typical of the subarctic. | image | textbook_images/world_climates_20194.png |
L_0030 | world climates | T_0309 | FIGURE 17.14 Polar climates include polar and alpine tundra. Polar Tundra in Northern Alaska (70 N latitude), Alpine Tundra in the Colorado Rockies (40 N latitude). | image | textbook_images/world_climates_20195.png |
L_0031 | climate change | T_0313 | FIGURE 17.17 Pleistocene glaciers covered an enormous land area. Chicago is just one city that couldnt have existed during the Pleistocene. | image | textbook_images/climate_change_20198.png |
L_0031 | climate change | T_0314 | FIGURE 17.18 Earths temperature. Different sets of data all show an increase in temperature since about 1880 (the Industrial Revolution). | image | textbook_images/climate_change_20199.png |
L_0031 | climate change | T_0314 | FIGURE 17.19 Earths temperature (18502007). Earth has really heated up over the last 150 years. Do you know why? | image | textbook_images/climate_change_20200.png |
L_0031 | climate change | T_0317 | FIGURE 17.20 How much more carbon dioxide was in the air in 2005 than in 1960? | image | textbook_images/climate_change_20201.png |
L_0031 | climate change | T_0318 | FIGURE 17.21 How much did sea level rise between 1880 and 2000? Other effects of global warming include more extreme weather. Earth now has more severe storms, floods, heat waves, and droughts than it did just a few decades ago. Many living things cannot adjust to the changing climate. For example, coral reefs are dying out in all the worlds oceans. | image | textbook_images/climate_change_20202.png |
L_0031 | climate change | T_0319 | FIGURE 17.22 The Arctic will experience the greatest temperature changes. | image | textbook_images/climate_change_20203.png |
L_0031 | climate change | T_0321 | FIGURE 17.23 In the 2050s, there may be only half as much sea ice as there was in the 1950s. | image | textbook_images/climate_change_20204.png |
L_0031 | climate change | T_0321 | FIGURE 17.24 This diagram represents the Pacific Ocean in a normal year. North and South America are the brown shapes on the right. | image | textbook_images/climate_change_20205.png |
L_0031 | climate change | T_0322 | FIGURE 17.25 How do you think El Nio affects climate on the western coast of South America? | image | textbook_images/climate_change_20206.png |
L_0031 | climate change | T_0322 | FIGURE 17.26 How do you think La Nia affects climate on the western coast of South America? | image | textbook_images/climate_change_20207.png |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.