Science 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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| Triple Beam Balance | used to meansure mass in grams
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| Neutron | the part of an atom with no charge
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| Proton | the part of an atom with a positive charge
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| Electron | the part of an atom with a negative charge
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| Chemical Change | a change that cannot be undone. ex: paper burning
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| Physical Change | a change that can be reversed; a change ion the state of matter. ex: ice cubes melting
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| Newton's First Law | an object at rest/motion will stay in rest/motion until an unbalanced force acts upon it
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| what should you do with dirty beakers after a lab? | clean them
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| how is the periodic table organized? | in periods, groups, and by increasing atomic number
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| is 2HeC + H -> 2HeCH a molecule, equation, or element? | equation
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| if the net force on an object is 7N, are the forces balanced or unbalanced? | unbalanced
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| If Sally drives 10 miles in 20 minutes, how fast was she driving? | 0.5 mi/min
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| What kind of graph has distance and time on the x and y axises? | speed graph
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| What kind of graph has velocity and time on the x and y axises? | acceleration graph
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| What are the 3 types of galaxies? | spiral, elliptical, and irregular
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| What is a comet? | made of rock, ice, and cosmic dust loosely packed together; orbits the sun in an elliptical pathway
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| light year | the distance light travels in one Earth year
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| electromagnetic spectrum | spectrum that shows all possible frequencies of electromagnetic radiation
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| Newton's 3rd Law | for every action, there is an equal and opposite reaction
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| In the equation 3HeC + 4KH -> 7HeCKH, how many atoms of He are there on the product side? | 7 atoms of He
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| Is HeKCl an element, molecule, or equation? | molecule
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| When an atom loses a proton, what does it become? | a new element
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| When an atom loses a electron, what does it become? | it becomes an ion
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| When an atom loses a neutron, what does it become? | it becomes an isotope
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| If the net force on an object is zero newtons, are the forces acting upon the obkect balanced or unbalanced? | balanced
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