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7.1 Vocab
Term | Definition |
---|---|
atom | the smallest particle of matter; make up everything that is considered matter |
chemical reaction | A process in which one or more substances are converted to one or more different substances |
density | How much matter is in a certain space. |
flammability | How a substance interacts with fire. |
inference | a conclusion or explanation made using your observations and prior knowledge |
Law of Conservation of Mass | Matter is not created nor destroyed in any chemical or physical change |
matter | anything that has mass and volume |
model | a representation of an idea, an object or a process that is used to describe and explain phenomena that cannot be experienced directly |
molecule | Made up of a group of atoms bonded together. |
observation | how scientists collect data about the natural world around them using the 5 senses |
property | A characteristic of a substance that doesn’t change. |
phase change | When matter changes from one state (liquid, gas, solid) to another. |
product | The new substances after a chemical reaction has occurred. |
reactant | A substance you start with in a chemical reaction. |
soluble | Describes a material that can dissolve (break apart) in a particular substance. |
state of matter | Forms in which matter can exist. (solid, liquid, gas, plasma) |
substance | Made of one type of material throughout. |