Matter & States
Anything that has mass and takes up space.
What is matter?
These tiny units are called the "building blocks of matter" because they make up all living and nonliving things.
What are atoms?
A physical combination of two or more substances where each substance keeps its own identity.
What is a mixture?
In a sugar water mixture, sugar is this part of the solution.
What is the solute?
Name two of the three actions you can take to make a solute dissolve faster in a solvent.
What are stirring, heating/warming, or crushing/grinding particles into smaller pieces?
The three most common states or phases of matter found on Earth.
What are solid, liquid, and gas?
The two subatomic particles that make up the nucleus in the center of an atom.
What are protons and neutrons?
Trail mix, soil, and salad are examples of this type of mixture where the parts are unevenly distributed.
What is a heterogeneous mixture?
The substance that makes up most of a solution and dissolves the solute.
What is the solvent?
Leaving saltwater untouched for two weeks or boiling it will remove the water and leave this substance behind in the container.
What is salt?
This state of matter has a definite volume but no fixed shape, taking the shape of its container.
What is a liquid?
The smallest particle in an atom, which carries a negative charge and orbits outside the nucleus.
What is an electron?
Italian dressing or muddy water, where solid particles float at first but eventually settle to the bottom if left undisturbed.
What is a suspension?
Solutions belong to this general group of mixtures because all particles are evenly mixed throughout.
What is a homogeneous mixture?
A method of separating a solution by evaporating the liquid and then cooling and collecting the vapor back as a liquid.
What is distillation?
A measurement of how many particles of matter are packed into a specific amount of space or volume.
What is density?
This subatomic particle determines an element's atomic number and never changes count, even if the element changes state.
What is a proton?
A homogeneous mixture like milk or whipped cream where one substance is spread evenly through another, but particles do not dissolve or settle out.
What is a colloid?
While air is a gas solution and salt water is a liquid solution, steel and brass are examples of this state of solution.
What is a solid solution?
True or False: Combining substances to form a mixture or solution is a chemical change because a new substance is created.
What is False? (It is a physical change, and no chemical reaction occurs)
If you chop a tree into two logs where one log is much larger than the other, both logs will have the exact same value for this physical property.
What is density?
Because atoms are too small to be seen with regular microscopes, scientists must use this specialized tool to view individual atoms.
What is an electron microscope?
Homogeneous mixtures formed from solid metals, such as brass, bronze, and steel.
What are alloys?
The primary reason why a filter or screen cannot separate the parts of a solution.
What is because the particles are mixed at the molecular level and are too tiny to be trapped by a filter?
A characteristic property used to identify substances by measuring how much solute can dissolve in a set amount of solvent at a given temperature.
What is solubility?