Vocabulary words from unit B-3.
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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| molecule | The smallest piece of matter that can take part in a chemical reaction.
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| chemical bond | An attraction between atoms that allows the formation of chemical substances.
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| chemical formula | A representation of the molecules that combine in order to create compounds. It shows the number of protons of each element in the formula.
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| compound | A chemical substance created by the chemical bonds of two or more different elements.
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| element | A substance made up of atoms which all have the same number of protons, or the same atomic number.
They are chemically the simplest substances and hence cannot be broken down using chemical methods.
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| chemical reaction | The result/aftermath of a chemical experiment.
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| reactant | A material that undergoes change during a chemical reaction.
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| product | A substance formed as the result of a chemical reaction.
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| cross-link | A bond that links one polymer chain to another.
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| monomer | The connecting molecule that links the molecules of a polymer together.
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| polymer | A large molecule composed of many repeated subunits.
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| open system | A system that can freely exchange matter and energy with its surroundings.
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| closed system | A system that cannot exchange matter and energy with its surroundings.
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| Law of Conservation of Mass | A scientific law that states that while matter can be changed from one form into another, mixtures can be separated or made, and pure substances can be decomposed, the total amount of mass will not change.
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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:
lclark01
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