Mod 1 basics
This is gathering information using senses or with the aid of instruments.
What is an observation?
This is a form of matter that does not have a definite volume or shape.
What is a gas?
This states that matter cannot be created or destroyed; it can only change forms.
What is the Law of Conservation of Mass?
This is an attraction between molecules of the same substance so that they stay together.
What is cohesion?
This is energy stored in chemical bonds.
What is chemical energy?
This is a factor that can change in an experiment.
What is a variable?
This is a pure substance made of only one kind of atom.
What is an element?
This is the subatomic particle that has a positive charge and is found in the nucleus of an atom.
What is a proton?
This is an atom or group of atoms that has a positive or negative charge.
What is an ion?
These are compounds composed of two elements.
What are binary compounds?
This is a logical conclusion drawn from observations, pervious knowledge and available information.
What is inference?
This is energy in motion.
What is kinetic energy?
This is the subatomic particle that tells you what kind of element you have.
What is a proton?
These are chemical bonds formed in which two atoms share one or more pairs of valence electrons.
What are covalent bonds?
This is a chemical reaction that absorbs energy from its surroundings.
What is an endothermic reaction?
What is the prefix, number, ands symbol for centimeter?
What is centi, 0.01,C?
This is a group of atoms bonded together.
What is a molecule?
This is a region of space around the nucleus where electrons are most likely to be found.
What is an orbital?
These are new substances formed as a result of a chemical change.
What are products?
This is a chemical reaction in which two or more substance react to form a single compound.
What is a synthesis reaction?
This is an in depth explanation of a range of phenomena in the natural world that has been thoroughly tested and is supported by a significant amount of evidence.
What is a Scientific Theory?
This is the movement within gases and liquids that spreads out particles to an area of low concentration.
What is diffusion?
This is the sum of the protons and neutrons in the nucleus of an atom.
What is mass number?
This is a molecule that has slight positive and negative charges due to an imbalance in the way electron are shared.
What is a polar molecule?
This is a chemical reaction between 2 compounds where the positive ion of one compound is exchanged with a positive ion of another compound.
What is a double replacement reaction?