4th grade Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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how does a glacier move? | when more snow falls in winter than melts in summer.layers of snow.lower layers form ice.
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what is an ice age? | long periods of cold temperatures and glaciers.
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what are the three soil horizon? | a horizon:topsoil.
b horizon:subsoil
c horizon:broken-down bedrock
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what ways can rock be broken down to form soil? | rain
wind
freezing and thawing
ice
chemical changes
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what are some of the properties soil can have? | texture
composition and thickness
mineral content where it was formed
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why is soil permeability important? | high permeability:water and nutrients flow quickly.
low permeability:water and nutrients flow slowly and holds water.
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what is a seismograph? | an instrument measures and records the energy of earthquake vibrations.
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what is the focus of an earthquake? | the place where movement begins.
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what are earths four layers? | crust
mantle
outer core
inner core
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
ammybear81
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