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if you can't use a controlled experiment you should....
build a model so you can control the factors
to study the side effects of a medicine you should...
include a control group that doesn't get medicine
dependent on where the object is in relation to earth, also depends on the mass of the object and the mass of earth
the volume of gas in a piston decreases when
the temperature doesn't change but the pressure is reduced
the particles of water that evaporate from an pen container have...
more speed and higher energy than the particles that remain
if a pressure cooker contains steam at high pressure then..
the particles of gas are close together and collide with the inside of the container at a fast rate
states that for a fixed amount of gas at a constant temperature, the volume increases as the pressure increases
states that for a fixed amount of gas at a constant pressure, volume increases as temperature increases
atmospheric pressure is...
lower at the top of the mountain, lowering the boiling point of the water
the same temperature as the boiling point at a given pressure and the temperature at which gas changes to a liquid
the elements gold, copper, sulfur, neon, and carbon
do not react readily with water or air and can be found uncombined in nature.
holds the electrons around the nucleus, causes protons in the nucleus to push away from each other
has physical properties more like the properties of nonmetals than of metals; the most abundant element in the universe
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