5th Grade Science - Unit 1

alchemist

a name for people in the past who studied the combination of chemicals

mixture

a combination of two or more things

mix

to combine two or more things

state of matter

the different forms of matter that include solid, liquid, and gas

liquid

a state of matter, such as water when you can pour it

gas

a state of matter, such as water when it is steam

oxygen

a type of gas that plants release and animals breathe in

matter

anything that takes up space and has weight; can be in different forms such as solid, liquid, or gas

experiment

a test used to discover new information about a question

model

a pretend version of something that scientists use when the real thing is too big, small, or

quantitative

number data

qualitative

word/ description data

dissolve

to mix a solid into a liquid until it forms a solution.

solution

a homogeneous mixture formed when a solute dissolves in a solvent.

particle

the smallest unit of a substance that retains its chemical properties.

acid

a substance that increases hydrogen ion concentration in a solution, often possessing a sour taste and the ability to react with bases.

reactive

describes a substance that undergoes chemical changes when exposed to other substances.

chemical reaction

a process where substances (reactants) transform into different substances (products) through breaking and forming chemical bonds.

atom

the basic unit of matter, consisting of a nucleus surrounded by electrons.

powder