4th grade Harcourt Science Unit F Ch 3 Simple Machines
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| effort force | show 🗑
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| wedge | show 🗑
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| simple machines | show 🗑
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| work | show 🗑
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| show | flat surface that has one end higher than the other
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| show | fixed point of a lever
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| show | rope or chain and the wheel it fits around
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| screw | show 🗑
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| lever | show 🗑
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| show | how well a machine changes effort into work
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| show | large wheel attached to a smaller wheel or rod
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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:
crandolph
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