4th grade magnetism test
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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| force | a push or pull
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| magnet | an object that sticks to iron
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| magnetism | a specific kind of force
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| attract | when magnets pull together
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| repel | when magnets pull apart
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| temporary magnet | a piece of iron that behaves like a magnet when it is touching a permanent magnet
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| induced magnet | the influence of a permanent magnet's magnetic field on a piece of iron, which makes the magnet act like a magnet
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| graph | organizes details visually to show a relationship between two things
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| prediction | an educated guess based on data or previous experience
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| intersection | the point at which two lines cross
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| detector | something you use to gather evidence about something that you can't see
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| distance between two magnets | greater the distance the weaker the force of attraction
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| two magnets | can attract or repel each other
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| what detects a magnetic field? | compasses, iron fillings, and iron objects
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| When you touch a piece of iron to a permanent magnet, magnetism is induced in the piece of iron, and it becomes a temporary magnet. Magnetism can be induced only in iron or steel and a few other metals. | When you touch a piece of iron to a permanent magnet, magnetism is induced in the piece of iron, and it becomes a temporary magnet. Magnetism can be induced only in iron or steel and a few other metals.
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| Stops force of magnetism | Thick objects and sheets of steel stop magnetism
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| Magnetic force decreases | the magnetic force of attraction between two magnets decreases with distance
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| compasses, iron fillings, and iron objects | detect a magnetic field
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| thick objects and sheets of steel | stop the force of magnetism
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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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