1
What two things does matter have?
Volume and Mass
What is mass?
How much matter is inside something.
Which is denser - a one-inch block of gold or a one-inch block of wood?
What are the three states of matter?
In which state of matter are molecules most active?
Gas
In which state of matter are molecules least active?
solid
Which two states of matter do not have a particular form or shape but take on the shape of their container?
Gas and liquid
What do we call the point at which a sold becomes a liquid?
Melting point
What do we call the point at which a liquid becomes a gas?
Boiling point
What temperature is the freezing point of water?
32 degrees Fahrenheit or 0 degrees Celsius
What temperature is the boiling point of water?
212 degrees Fahrenheit or 100 degrees Celsius
What is an atom?
What is an element?
A substance made up of only one kind of atom.
What is the charge of a proton?
Positive
What is the charge of an electron?
What is the charge of a neutron?
Neutral
What do we call a solid with a regular, repeating arrangement of atoms?
A crystal
Which kind of polymer is widely used because it's light, easy to shape, and can be recycled and remolded into other things?
Plastic
Which kind of reaction changes a substance into a different substance?
A chemical reaction.
Which kind of reaction changes only the form or appearance of a substance?
A physical reaction.
True or False: A base tastes like a vinegar and corrodes metal?
False
What do we call a mixture in which the individual parts cannot be seen as separate?
Homogeneous
Which law states that objects at rest tend to stay at rest and objects in motion tend to stay in motion in a straight line unless acted upon by a force?
Newton's first law of motion.
What do we call a mixture in which the individual parts can be easily seen?
Heterogeneous
Which law states that for every action there is an equal and opposite reaction?
Newton's third las of motion.