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Inch by inch the snow started to build up. ||||| This next winters snowfall had a head start. | Do glacier's form quickly No, they take many years to form, as they grow inch by inch at a time |
As a result, during the summer months, that amount of snow did not melt. ||||| Over many years, layer upon layer of snow compacted and turned to ice. | Do glacier's form quickly No, they take many years to form, as they grow inch by inch at a time |
In the winter months, precipitation falls as snow. ||||| This solid form of water builds up on the ground as long as the temperatures stay cold enough. | What state must water be in to become snow Frozen |
This solid form of water builds up on the ground as long as the temperatures stay cold enough. ||||| It may have only been an inch or so of snow that melted. | What state must water be in to become snow Frozen |
Why does it move? ||||| Year after year, the snow that did not melt became thicker and thicker. | What state must water be in to become snow Frozen |
In the winter months, precipitation falls as snow. ||||| This solid form of water builds up on the ground as long as the temperatures stay cold enough. | What state must water be in to become snow Solid |
This solid form of water builds up on the ground as long as the temperatures stay cold enough. ||||| It may have only been an inch or so of snow that melted. | What state must water be in to become snow Solid |
Why does it move? ||||| Year after year, the snow that did not melt became thicker and thicker. | What state must water be in to become snow Solid |
As a result, during the summer months, that amount of snow did not melt. ||||| The following winter, snow fell on top of this left-over snow. ||||| This next winters snowfall had a head start. ||||| Nearer the poles, summer does not last very long. | What climate is needed for glaciers to form Cold |
This next winters snowfall had a head start. ||||| Inch by inch the snow started to build up. ||||| This is what typically happens now. ||||| The earth was a little cooler 12,000 years ago. | What climate is needed for glaciers to form Cold |
This solid form of water builds up on the ground as long as the temperatures stay cold enough. ||||| This is what typically happens now. ||||| In the winter months, precipitation falls as snow. ||||| Why does it move? | What climate is needed for glaciers to form Cold |
As a result, during the summer months, that amount of snow did not melt. ||||| The following winter, snow fell on top of this left-over snow. ||||| This next winters snowfall had a head start. ||||| Nearer the poles, summer does not last very long. | What climate is needed for glaciers to form Colder weather and shorter summers |
This next winters snowfall had a head start. ||||| Inch by inch the snow started to build up. ||||| This is what typically happens now. ||||| The earth was a little cooler 12,000 years ago. | What climate is needed for glaciers to form Colder weather and shorter summers |
This solid form of water builds up on the ground as long as the temperatures stay cold enough. ||||| This is what typically happens now. ||||| In the winter months, precipitation falls as snow. ||||| Why does it move? | What climate is needed for glaciers to form Colder weather and shorter summers |
In the winter months, precipitation falls as snow. ||||| This solid form of water builds up on the ground as long as the temperatures stay cold enough. | How do glaciers form By accumulation of snow |
In the winter months, precipitation falls as snow. ||||| These are both good questions. | How do glaciers form By accumulation of snow |
If the summer is long enough and warm enough, all the snow may melt. ||||| The frozen water changes state back into a liquid state. | How do glaciers form By accumulation of snow |
In the winter months, precipitation falls as snow. ||||| This solid form of water builds up on the ground as long as the temperatures stay cold enough. | How do glaciers form Layer upon layer of snow compacted and turned to ice |
In the winter months, precipitation falls as snow. ||||| These are both good questions. | How do glaciers form Layer upon layer of snow compacted and turned to ice |
If the summer is long enough and warm enough, all the snow may melt. ||||| The frozen water changes state back into a liquid state. | How do glaciers form Layer upon layer of snow compacted and turned to ice |
In the winter months, precipitation falls as snow. ||||| This solid form of water builds up on the ground as long as the temperatures stay cold enough. | How do glaciers form During winter, precipitation falls as snow, and then this solid form of water builds up on the ground as long as the temperatures stay cold enough |
In the winter months, precipitation falls as snow. ||||| These are both good questions. | How do glaciers form During winter, precipitation falls as snow, and then this solid form of water builds up on the ground as long as the temperatures stay cold enough |
If the summer is long enough and warm enough, all the snow may melt. ||||| The frozen water changes state back into a liquid state. | How do glaciers form During winter, precipitation falls as snow, and then this solid form of water builds up on the ground as long as the temperatures stay cold enough |
The earth was a little cooler 12,000 years ago. ||||| As a result, during the summer months, that amount of snow did not melt. | Was there snow in summer 12,000 years ago Yes |
As a result, during the summer months, that amount of snow did not melt. ||||| It may have only been an inch or so of snow that melted. | Was there snow in summer 12,000 years ago Yes |
This is what typically happens now. ||||| These are both good questions. | Was there snow in summer 12,000 years ago Yes |
In the winter months, precipitation falls as snow. ||||| As the temperature rises, the snow starts to melt. | Are temps always the same in glacier areas No |
In the winter months, precipitation falls as snow. ||||| The following winter, snow fell on top of this left-over snow. | Are temps always the same in glacier areas No |
Inch by inch the snow started to build up. ||||| It may have only been an inch or so of snow that melted. | Are temps always the same in glacier areas No |
In the winter months, precipitation falls as snow. ||||| As the temperature rises, the snow starts to melt. | Are temps always the same in glacier areas Temperatures rise and fall depending on the time of year |
In the winter months, precipitation falls as snow. ||||| The following winter, snow fell on top of this left-over snow. | Are temps always the same in glacier areas Temperatures rise and fall depending on the time of year |
Inch by inch the snow started to build up. ||||| It may have only been an inch or so of snow that melted. | Are temps always the same in glacier areas Temperatures rise and fall depending on the time of year |
Year after year, the snow that did not melt became thicker and thicker. ||||| Inch by inch the snow started to build up. ||||| Over many years, layer upon layer of snow compacted and turned to ice. | How does the snow turn into ice By get accumulated and compacted |
Over many years, layer upon layer of snow compacted and turned to ice. ||||| The following winter, snow fell on top of this left-over snow. ||||| As the temperature rises, the snow starts to melt. | How does the snow turn into ice By get accumulated and compacted |
The following winter, snow fell on top of this left-over snow. ||||| This is what typically happens now. ||||| Nearer the poles, summer does not last very long. | How does the snow turn into ice By get accumulated and compacted |
Year after year, the snow that did not melt became thicker and thicker. ||||| Inch by inch the snow started to build up. ||||| Over many years, layer upon layer of snow compacted and turned to ice. | How does the snow turn into ice Layer upon layer of snow compacted and turned to ice |
Over many years, layer upon layer of snow compacted and turned to ice. ||||| The following winter, snow fell on top of this left-over snow. ||||| As the temperature rises, the snow starts to melt. | How does the snow turn into ice Layer upon layer of snow compacted and turned to ice |
The following winter, snow fell on top of this left-over snow. ||||| This is what typically happens now. ||||| Nearer the poles, summer does not last very long. | How does the snow turn into ice Layer upon layer of snow compacted and turned to ice |
Year after year, the snow that did not melt became thicker and thicker. ||||| Inch by inch the snow started to build up. ||||| Over many years, layer upon layer of snow compacted and turned to ice. | How does the snow turn into ice Year after year, the snow that did not melt became thicker and thicker, building up, compacting, and turning into ice |
Over many years, layer upon layer of snow compacted and turned to ice. ||||| The following winter, snow fell on top of this left-over snow. ||||| As the temperature rises, the snow starts to melt. | How does the snow turn into ice Year after year, the snow that did not melt became thicker and thicker, building up, compacting, and turning into ice |
The following winter, snow fell on top of this left-over snow. ||||| This is what typically happens now. ||||| Nearer the poles, summer does not last very long. | How does the snow turn into ice Year after year, the snow that did not melt became thicker and thicker, building up, compacting, and turning into ice |
You may be wondering, how can a glacier get so big? ||||| Over many years, layer upon layer of snow compacted and turned to ice. ||||| Why does it move? | What are two characteristics of glaciers They are big, they move and they are cold |
Over many years, layer upon layer of snow compacted and turned to ice. ||||| The earth was a little cooler 12,000 years ago. ||||| Nearer the poles, summer does not last very long. | What are two characteristics of glaciers They are big, they move and they are cold |
In the winter months, precipitation falls as snow. ||||| This is what typically happens now. ||||| It may have only been an inch or so of snow that melted. | What are two characteristics of glaciers They are big, they move and they are cold |
You may be wondering, how can a glacier get so big? ||||| Over many years, layer upon layer of snow compacted and turned to ice. ||||| Why does it move? | What are two characteristics of glaciers Big and compact |
Over many years, layer upon layer of snow compacted and turned to ice. ||||| The earth was a little cooler 12,000 years ago. ||||| Nearer the poles, summer does not last very long. | What are two characteristics of glaciers Big and compact |
In the winter months, precipitation falls as snow. ||||| This is what typically happens now. ||||| It may have only been an inch or so of snow that melted. | What are two characteristics of glaciers Big and compact |
The earth was a little cooler 12,000 years ago. ||||| It may have only been an inch or so of snow that melted. | Why didn't most snow melt in the past The earth was a little cooler 12,000 years ago, so it may have only been an inch or so of snow that melted |
It may have only been an inch or so of snow that melted. ||||| The frozen water changes state back into a liquid state. | Why didn't most snow melt in the past The earth was a little cooler 12,000 years ago, so it may have only been an inch or so of snow that melted |
If the summer is long enough and warm enough, all the snow may melt. ||||| As the temperature rises, the snow starts to melt. | Why didn't most snow melt in the past The earth was a little cooler 12,000 years ago, so it may have only been an inch or so of snow that melted |
The earth was a little cooler 12,000 years ago. ||||| It may have only been an inch or so of snow that melted. | Why didn't most snow melt in the past In past, summer was short |
It may have only been an inch or so of snow that melted. ||||| The frozen water changes state back into a liquid state. | Why didn't most snow melt in the past In past, summer was short |
If the summer is long enough and warm enough, all the snow may melt. ||||| As the temperature rises, the snow starts to melt. | Why didn't most snow melt in the past In past, summer was short |
The earth was a little cooler 12,000 years ago. ||||| It may have only been an inch or so of snow that melted. | Why didn't most snow melt in the past The earth was a little cooler |
It may have only been an inch or so of snow that melted. ||||| The frozen water changes state back into a liquid state. | Why didn't most snow melt in the past The earth was a little cooler |
If the summer is long enough and warm enough, all the snow may melt. ||||| As the temperature rises, the snow starts to melt. | Why didn't most snow melt in the past The earth was a little cooler |
Hannah Harvey was a ten year old that had many friends in school. ||||| Hannah spent the next two weeks visiting her friends and saying her goodbyes. ||||| The next day, Hannah boarded a plane with her family. | How old was Hannah when she moved to Kenya Ten |
Hannah Harvey was a ten year old that had many friends in school. ||||| The Harvey family left and off they went across the ocean to begin their new life in Kenya. ||||| She lived in New York and enjoyed doing gymnastics and playing soccer. | How old was Hannah when she moved to Kenya Ten |
Hannah did not seem to think this was too big of a deal. ||||| One day, Hannah came home from school and her parents greeted her. ||||| As Hannah began to cry thinking about all of her friends at home, Hannah's mother calmed her with a gentle touch. | How old was Hannah when she moved to Kenya Ten |
At first, they thought that Jackson could not come with them. ||||| However, Hannah worked hard and helped make sure that he had all of his shots so that he could come. ||||| After he had them all, the airport said it was OK for Jackson to come! | How was Jackson able to come with the family to Keny Hannah made sure he had his shots |
However, Hannah worked hard and helped make sure that he had all of his shots so that he could come. ||||| She cried very hard when she said goodbye to her best friend, Susan. ||||| Hannah did not seem to think this was too big of a deal. | How was Jackson able to come with the family to Keny Hannah made sure he had his shots |
Hannah asked why everyone was being so strange. ||||| Hannah's father, who was known as Pop, explained to Hannah that his job was forcing him to move. ||||| She cried very hard when she said goodbye to her best friend, Susan. | How was Jackson able to come with the family to Keny Hannah made sure he had his shots |
At first, they thought that Jackson could not come with them. ||||| However, Hannah worked hard and helped make sure that he had all of his shots so that he could come. ||||| After he had them all, the airport said it was OK for Jackson to come! | How was Jackson able to come with the family to Keny He had all his shots |
However, Hannah worked hard and helped make sure that he had all of his shots so that he could come. ||||| She cried very hard when she said goodbye to her best friend, Susan. ||||| Hannah did not seem to think this was too big of a deal. | How was Jackson able to come with the family to Keny He had all his shots |
Hannah asked why everyone was being so strange. ||||| Hannah's father, who was known as Pop, explained to Hannah that his job was forcing him to move. ||||| She cried very hard when she said goodbye to her best friend, Susan. | How was Jackson able to come with the family to Keny He had all his shots |
The next day, Hannah boarded a plane with her family. ||||| At first, they thought that Jackson could not come with them. ||||| However, Hannah worked hard and helped make sure that he had all of his shots so that he could come. | Why is the family dog Jackson getting shots So he could go to kenya |
The next day, Hannah boarded a plane with her family. ||||| Hannah Harvey was a ten year old that had many friends in school. ||||| One day, Hannah came home from school and her parents greeted her. | Why is the family dog Jackson getting shots So he could go to kenya |
The Harvey family left and off they went across the ocean to begin their new life in Kenya. ||||| Kenya, she explained, was a place in Africa and life would be very different there. ||||| One day, Hannah came home from school and her parents greeted her. | Why is the family dog Jackson getting shots So he could go to kenya |
Hannah Harvey was a ten year old that had many friends in school. ||||| Then, Hannah's mother explained that they were moving to Kenya. | How old is Hannah when she finds out that she is moving from New York to Kenya Ten |
Then, Hannah's mother explained that they were moving to Kenya. ||||| After he had them all, the airport said it was OK for Jackson to come! | How old is Hannah when she finds out that she is moving from New York to Kenya Ten |
The Harvey family left and off they went across the ocean to begin their new life in Kenya. ||||| She cried very hard when she said goodbye to her best friend, Susan. | How old is Hannah when she finds out that she is moving from New York to Kenya Ten |
She cried very hard when she said goodbye to her best friend, Susan. ||||| Then, Hannah's mother explained that they were moving to Kenya. | If Susan is Hannah's best friend, why would she need to visit her Hannah was moving |
She cried very hard when she said goodbye to her best friend, Susan. ||||| Hannah spent the next two weeks visiting her friends and saying her goodbyes. | If Susan is Hannah's best friend, why would she need to visit her Hannah was moving |
Hannah asked why everyone was being so strange. ||||| At first, they thought that Jackson could not come with them. | If Susan is Hannah's best friend, why would she need to visit her Hannah was moving |
She cried very hard when she said goodbye to her best friend, Susan. ||||| Then, Hannah's mother explained that they were moving to Kenya. | If Susan is Hannah's best friend, why would she need to visit her Hannah would be in kenya |
She cried very hard when she said goodbye to her best friend, Susan. ||||| Hannah spent the next two weeks visiting her friends and saying her goodbyes. | If Susan is Hannah's best friend, why would she need to visit her Hannah would be in kenya |
Hannah asked why everyone was being so strange. ||||| At first, they thought that Jackson could not come with them. | If Susan is Hannah's best friend, why would she need to visit her Hannah would be in kenya |
Kenya, she explained, was a place in Africa and life would be very different there. ||||| As Hannah began to cry thinking about all of her friends at home, Hannah's mother calmed her with a gentle touch. | Why was Hannah crying about her friends at home She had to say goodbye |
Kenya, she explained, was a place in Africa and life would be very different there. ||||| Susan did not quite understand where Kenya was, but promised to visit Hannah. | Why was Hannah crying about her friends at home She had to say goodbye |
Jackson began howling as Hannah cried, but was also calmed by Hannah's mother. ||||| She knew that something was different by the expressions on their faces. | Why was Hannah crying about her friends at home She had to say goodbye |
What if two children push a swing at the same time? ||||| Would the swing go higher? ||||| Yes, together their force would be more. | If two children push a swing at the same time, will the swing go higher "Yes" |
Yes, together their force would be more. ||||| Consider the example in Figure 1.3. ||||| A book is resting on a table. | If two children push a swing at the same time, will the swing go higher "Yes" |
Its force is also 20 newtons. ||||| Gravity pulls the book downward. ||||| Consider the example in Figure 1.3. | If two children push a swing at the same time, will the swing go higher "Yes" |
Of course, that force is gravity. ||||| Gravity pulls you down toward the center of Earth. | What pulls you down The force of gravity |
Gravity pulls you down toward the center of Earth. ||||| A book is resting on a table. | What pulls you down The force of gravity |
It is common for forces to be combined. ||||| Would the swing go higher? | What pulls you down The force of gravity |
Of course, that force is gravity. ||||| Gravity pulls you down toward the center of Earth. | What pulls you down Gravity |
Gravity pulls you down toward the center of Earth. ||||| A book is resting on a table. | What pulls you down Gravity |
It is common for forces to be combined. ||||| Would the swing go higher? | What pulls you down Gravity |
What if two children push a swing at the same time? ||||| Would the swing go higher? | Does a swing go higher when two children push on it rather than just one child Yes |
What if two children push a swing at the same time? ||||| Its force is also 20 newtons. | Does a swing go higher when two children push on it rather than just one child Yes |
It has a force of 20 newtons. ||||| Most objects on Earth have at least two forces acting on them. | Does a swing go higher when two children push on it rather than just one child Yes |
It is common for forces to be combined. ||||| Most objects on Earth have at least two forces acting on them. | Is it rare for objects on Earth to have at least two forces acting on them No |
It is common for forces to be combined. ||||| At the same time, the table pushes the book upward. | Is it rare for objects on Earth to have at least two forces acting on them No |
Gravity pulls you down toward the center of Earth. ||||| They hold you up against the pull of gravity. | Is it rare for objects on Earth to have at least two forces acting on them No |
It is common for forces to be combined. ||||| Most objects on Earth have at least two forces acting on them. | Is it rare for objects on Earth to have at least two forces acting on them No. (It is common.) |
It is common for forces to be combined. ||||| At the same time, the table pushes the book upward. | Is it rare for objects on Earth to have at least two forces acting on them No. (It is common.) |
Gravity pulls you down toward the center of Earth. ||||| They hold you up against the pull of gravity. | Is it rare for objects on Earth to have at least two forces acting on them No. (It is common.) |
Gravity pulls the book downward. ||||| At the same time, the table pushes the book upward. | What forces acts on a book on a table Gravity and the table |
At the same time, the table pushes the book upward. ||||| Consider the example in Figure 1.3. | What forces acts on a book on a table Gravity and the table |
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