number of particles in matter
protons, neutrons and electrons
any substance that has mass and takes up space
occurs when matter alters state
two or more atoms chemically joined
describes matter. Color, Texture, Appearance, Mass
Select two properties that are needed to find the density of an object
We can use a microscopes to see that molecules are made up of atoms. we know that atoms are made up of
Which state of matter is often times difficult to observe in the environment around us?
Let’s think of some ways we can collect evidence to support the existence of matter in the state you chose for Part A. Place your ideas in the box below.