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element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity
element that does not conduct electricity as well as a metal but conducts it better than a nonmetal
combination of chemical symbols and numbers that indicates which elements and how many atoms of each element are present in a molecule
states that when a force is applied to a confined fluid, an increase in pressure is transmitted equally to all parts of the fluid.
systematic way of learning more about the natural world that provides possible explanations to questions and involves using a collection of skills
study of matter, which is anything that takes up space and has mass, and the study of energy, which is the ability to cause change
involves using knowledge and thinking skills to evaluate evidence and explanations
a possible explanation for repeatedly observed patterns in nature supported by observations and results from many investigations
involves changing one factor and observing its effect on one thing while keeping all other things constant
horizontal row of elements in the periodic table whose properties change gradually and predictably
elements in group 1 and 2 and 13-18 in the periodic table that include metals, metalloids, and nonmetals
change in which the identity of a substance changes and forms a new substance or substances
area where negatively charged electrons, arranged in energy levels, travel around an atom's nucleas
electron dot diagram
chemical symbol for an element, surrounded by as many dots as there are electrons in its outer energy level
matter that does not have a definate shape or volume; has particles that move at high speeds in all directions
movement of thermal energy from a substance at a higher tempurature to a substance at a lower temperature
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