7th Grade Matter
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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| Protons have a ______ charge? | positive charge
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| Electrons have a ______ charge? | negative charge
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| Neutrons have a _______ charge? | neutral charge
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| What is the number of protons in an atom called? | the atomic number
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| Which atomic particles will you find inside of the nucleus of an atom? | proton; protons and neutrons are located in the nucleus of an atom. Electrons orbit the nucleus.
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| An atom with a neutral charge has the same number of... | protons and electrons
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| What is a measure of how much matter something contains? | mass
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| What is the change called when the matter remains the same kind of matter and no new substances are formed? | physical change
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| What is the change called when the matter changes into a different kind of matter and new substances are formed in result of the change? | chemical change
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| What is the ability to pass energy from one to another called? | conductivity
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| What are the three parts to conductivity? | heat, electricity, sound
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| What is combustibility? | the ability to burn
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| What is volume? | the amount of space an object takes up
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| What is an atom? | the smallest particle of an element that has the chemical properties of the element.
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| What is substance? | a material that always has the same make-up and properties.
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| What is density? | the amount of mass in a certain volume of matter. It is equal to the mass divided by the volume.
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| What are molecules? | linked atoms, the smallest part of a compound.
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| What do atoms exchange with each other when they bond? | electrons
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| Which state(s) of matter has/have NO certain size (volume)? | gas
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| Which state(s) of matter has/have (a) certain size (volume)? | liquid and solid
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| What are the three states of matter? | solid, liquid and gas
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| What are atoms? | building blocks of matter
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| What is a solution? | mixed substances
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| What are three properties of matter? | mass, volume, and density
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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.
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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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