grade 7 science
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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| What is the formula to measure density? | Density = mass/volume
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| Define density | mass per unit of volume
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| Define volume | amount of space a substance occupies
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| Define mass | how much matter is in an object
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| Define viscosity | the state of being thick, sticky, and semifluid in consistency, due to internal friction.
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| Define flow rate | the volume of fluid flowing through an area each second.
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| What are the types of matter? | solid, liquids and gases
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| How does temperature affect viscosity. | If the temperature increases, the viscosity decreases which increases the flow rate.
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| What is the relationship between viscosity and flow rate? | The higher the viscosity the lower the flow rate.
The lower the viscosity the greater the flow rate.
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| What experiment did you do that confirms the relationship between viscosity and flow rate? | maple syrup
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| What is a fluid? | a substance that flows, a liquid or gas, takes the shape of the container
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| What is the relationship between temperature and density? | If the temperature increases the space between the molecules (speed up) which means there is more volume and less density.
If the temperature deceases the closer the particles are together decreasing the volume and increasing the density
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| What experiment did you do to show compression ? | syringe experiment
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| What is the one exception to the relationship between temperature and density? | water.
When water freezes, its particles move further apart, making the density of the water less than the density of the liquid.
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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:
raffertyj
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