chapter 2 lesson 1
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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| Metric System | a measurment system based on the number 10.
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| Why do scientists use a standard measurment system? | It allows scientists to compare data and communicate with each other about their results.
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| What is the main SI unit of measure? | The meter
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| Mass | a measure of the amount of matter in an object.
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| What is the main SI unit of mass? | The kilogram.
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| Weight | a measure of the force of gravity acting on an object.
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| Volume | the amount of space an object or substance takes up.
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| What is the main SI unit for volume? | The cubic meter.
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| Density | a measure of how much mass is contained in a given volume.
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| What is the main SI unit of density? | Kilograms per cubic meter.
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| What other scale can you use for temperature? | In addition to the Celcius scale, scientists sometimes use another temperature scale, called the Kelvin scale. In fact, the kelvin is the official unit for temperature.
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| What SI unit is used to measure time? | The second
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| What are common tools scientists use to measure length and mass? | Meter stick and triple beam balance.
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| What formula is used to determined the volume of a rectangular solid? | Length, times width, times height.
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| Why is an objects density expressed in two units? | Because the objects density is made up of mass and volume.
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| What is SI stand for? | International system of units.
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| Meniscus | The curve along the top of the liquids surface.
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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:
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