1st Semester Vocab.
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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| safety goggles | goggles used to protect the eyes when working with chemicals, fire or when the teacher says to
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| waft | using your hand to move a scent towards yourself
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| graduated cylinder | a container used to measure liquids
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| mass | amount of matter in an object
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| triple balance scale | a way to measure an objects mass
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| density | mass of an object divided by volume
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| volume | amount of space an object can contain
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| chemical change | when a substance is changed chemically, giving it new properties
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| physical change | when the physical properties of a substance are changed
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| nucleus | the center of an atom
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| proton | a part of the nucleus that is positively charged
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| neutron | a part of the nucleus that is neutrally charged
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| electron | a negatively charged part of an atom
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| periodic table | the collection of all known elements
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| atomic number | the number above the element on the periodic table (same as number of protons)
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| chemical equation | chemical symbols used to represent a reaction
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| reactants | the original substances before a chemical reaction
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| products | the product of a chemical reaction
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| balanced force | a force that has no motion
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| unbalanced force | a force that causees an object to be in motion
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| Newton's first law | An object at rest will stay at rest, and an object in motion will stay in motion until acted on by an unbalanced force
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| Newton's second law | The acceleration of an object depends on the mass of the object and the amount of force applied to the object
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| Newton's third law | For every action, there is an equal and opposite reaction
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| speed | speeed is calculated by dividing distance by time
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| time | time is calculated by dividing distance by speed
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| distance | distance is calculated by multiplying speed by time
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| speed graphs | speed graphs can have no motion, move forward or backward, have an increase in speed or have a decrease in speed
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| acceleration graphs | an acceleration graph can have no motion, a constant speed, positive acceleration or a negative acceleration.
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| galaxies | system of millions or billions of star, with gas and dust, which are held together by gravity
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| spiral galaxies | galaxies where stars followed with gas and dust form a spiral shape
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| elliptical galaxies | galaxies shaped like ellipses(stretched circles), categorized from E0-E7
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| irregular galaxies | galaxies with no definite form or shape
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| absolute magnitude | how bright a star actually is
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| apparent magnitude | how bright a star looks
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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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