ATOMS ARE FUN
Anything that has mass and takes up space
Matter
How many elements are currently on the periodic table?
118
occurs when a solute mixes evenly in a solvent
dissolving
occurs when thermal energy is removed from a liquid
freezing
A substance that consists of just one type of atom
element
occurs when a solute mixes evenly in a solvent
dissolving
Matter with a composition that is always the same.
substance
electrons are ______ charged.
Negatively
True or False- the smaller the atomic number, the greater the density.
FALSE
What is the Law of the Conservation of Mass?
Mass cannot be created nor destroyed, only transformed from one to another.
matter containing atoms of two or more elements chemically bonded together
compound
Protons are ______ charged.
Positively
a sign that a chemical change might have occurred.
odor change- smell
color change
energy change
bubbles
A small particle that is a building block of matter
atom
matter in which substances are evenly mixed but not chemically bonded
homogeneous mixture
A substance that contains atoms of two or more elements chemically bonded together
compound
Color change, odor change, and bubbles are signs that a(n) might have occurred.
chemical change
Mrs. Stear's favorite Movie.
Titanic
______________ is least likely to be useful in separating the substances in a mixture.
A. Mass
B. Density
C. Solubility
D. Magnetism
Mass
How are weight and mass different?
Weight-gravitational pull
Mass-matter
occurs when thermal energy is added to a solid
melting
Neutrons are ___________ charged.
Neutrally
occurs when thermal energy is added to a liquid
boiling
Pouring juice from a bottle into a glass is a change in ___________________.
Shape
Which physical property would be most useful for separating the substances in a saltwater solution?
boiling point