4th grade WYLIE Science Unit B_ch 4
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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| visible spectrum | lights energy that can be seen and can be broken into the colors of the rainbow
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| wavelength | the distance from a point on a wave to the same point on the next wave
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| transparent | allows light to pass through so that whatever is behind can be seen
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| translucent | allows light to pass through but scatters it so that whatever is behind it cannot be clearly seen
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| opaque | does not allow light to pass through
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| transmit | to allow to pass through
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| absorb | to take in
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| reflect | to bounce back
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| convex lens | a lens that is thicker in the middle than at the edges
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| concave lens | a lens that is thinner in the middle than at the edges
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| vibrate | to move quickly back and forth
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| volume | the loudness or softness of a sound
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| pitch | the highness or lowness of a sound
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| stethoscope | an instrument used to hear the sounds of body organs
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| microphone | an instrument used to amplify voices, music, and other sounds
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| electric signal | a form of energy
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| amplify | to make stronger
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| bullhorn | an instrument with a built-in microphone that makes sound louder
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| hearing aid | an instrument used to help people with a hearing problem hear better
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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:
Wylie
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