7th grade science terms
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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| Bacteria | smallest organisms on Earth, each of which is made up of only one cell.
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| Density | measurable physical property that can be found by dividing the mass of an object by its volume.
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| Plate Tectonics | theory that Earth's crust and upper mantle are broken into plates that float and move around on a plasticlike layer of the mantle.
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| Volume | the amount of space an object takes up.
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| Mass | amount of matter in a given object.
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| Seafloor Spreading | Hess's theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge.
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| Plasma | liquid part of blood, made mostly of water, in which oxygen, nutrients, and minerals are dissolved.
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| Pangaea | large, ancient landmass that was composed of all the continents joined together.
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| Organ | structure made of 2 or more differnt tissue types that work together to do a certain job.
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| Harry Hess | is a man who first suggest ocean floor spreading.
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| Carnivore | meat eating animal with sharp canine teeth specialized to rip and tear flesh.
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| Control | standard for comparison in an experiment.
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| Continental Drift | Wegener's hypothesis that all continents were onced connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions.
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| Constant | variable that does not change in an experiment.
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| Equator | imaginary line that wraps around Earth at 0 degrees latitude, halfway between the north and south poles.
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| Hibernation | period of inactivity during cold weather;in amphibians, involves burying themselves in mud or leaves.
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| Hypothesis | an educated prediction of what is about to happen or appear.
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| Latitude | distance in degrees north or south of the equator.
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| Longitude | distance in degrees east or west of the prime meridian.
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| Map Legend | explains the meaning of symbols used on a map.
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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:
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