8I Fluids
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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| Brownian motion | An erratic movement of small specks of matter caused by collisions with smaller particles of liquids or gases
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| Compress | To squeeze into a smaller volume
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| Contract | To get smaller
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| Density | The amount of mass that one cubic centimeter of a substance has
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| Diffusion | When particles spread from high concentration to low concentration
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| Expand | To get bigger
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| Gas | State of matter with no fixed volume or shape and is easy to squash
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| Liquid | State of matter that has a fixed volume but no fixed shape
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| Solid | State of matter that has a fixed shape and fixed volume
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| State of matter | Solid, liquid or gas
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| Mass | The amount of matter that something contains
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| Particle theory | The use of moving particles to explain scientific phenomena
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| Volume | The amount of space something takes up
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| Boiling | When a liquid turns to gas within all parts of the liquid
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| Evaporation | When a liquid turns to gas at the surface of the liquid only
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| Boiling point | The temperature at which a liquid turns into a gas
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| Condense | When a gas turns into a liquid
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| Freeze | When a liquid turns into a solid
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| Freezing point | The temperature at which a liquid turns into a solid
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| Melt | When a solid turns into a liquid
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| Melting point | The temperature at which a solid turns into a liquid
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| Sublime | When a solid turns into a gas without going through the liquid state
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| Water vapour | Steam
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| Fluid | A gas or a liquid
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| Pressure | The amount of force pushing on a certain area (N/m2 or Pa)
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| Upthrust | A force that pushes things up in liquids and gases
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| Weight | The amount of force with which gravity pulls things (N)
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| Air resistance | A force that tries to slow objects down that are moving through the air
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| Balanced force | When two forces on an object are the same strength but in opposite directions
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| Drag | Another name for air resistance or water resistance
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| Friction | A force between two objects that are touching
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| Streamlined | Something that has a smooth shape to reduce the air resistance or water resistance
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| Water resistance | A force on objects moving through water
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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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