7th grade chem review
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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| Chemistry is the study of _______. | Matter
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| Matter has____ and takes up _____. | Mass, Space
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| The different states of matter are,what? | Solid,Liquid,and Gas
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| What are the three subatomic particles that make up an atom? | Proton,Neutron,and Electron
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| What is the charge of a Proton? | Positive +
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| What is the charge of a Neutron? | Neutral or no charge +/-
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| What is the charge of an Electron? | Negative -
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| All matter is made up of, what? | Atom
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| What do these situations describe: .No space between particles .Heat is added becomes a liquid .Has a certain shape .Particles vibrate in place .has a certain size (volume) | Solid
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| What do these situations describe: .Has no certain size (volume) .Particles move quickly away from each other .Particles has lots of space between them. .Heat is removed becomes a liquid | Gas
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| What do these situations describe: .Has a certain size (volume) .Particles has some space between them .Heat added becomes gas .Heat removed becomes solid .Particles move around each other | Liquid
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| A property that helps you describe the exterior of a solid,liquid,and gas. | Physical Property
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| A property that can describe the inside or atoms of the matter. | Chemical Property
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| A change that creates a new substances by the reaction of two or more matters. | Chemical Change
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| A change that does not create a new substance but does change the physical properties of the original substance.(the substance can be returned to its original properties.) | Physical Change
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| If you take cool aide and water,keep stirring, in the end will the change be chemical or physical? | Physical!
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| If you burn a piece of paper with a match,will the change be chemical or physical? | Chemical!
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| If you fry an egg, will the change be physical or chemical? | Chemical! Because the egg has protein which denatures when heated up. (you can't get it back)
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| If you paint a wall, will the change be chemical or physical? | Physical!
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| When your stomach breaks down your food is it a physical or chemical change? | Chemical! because you cannot get the pieces of the food back together.
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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.
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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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