Matter
What two things does matter have?
volume and mass
What is an atom?
The smallest particle of an element that still keeps the properties of that element.
Which kind of reaction changes a substance into a different substance?
A Chemical Reaction
Which law states that an object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an outside force?
Newton's First Law
What is the region around a magnet that produces a magnetic force?
A Magnetic Field
What is Mass?
How much stuff is inside a particular material.
What is an element?
A substance that only contains one kind of atom.
Which kind of reaction changes only the form or appearance of a substance?
A Physical Reaction
Which law states that for every action there is an equal and opposite reaction?
Newton's Third Law
What is the Earth's core made of?
Liquid iron and nickel
What are the three states of matter?
solid, liquid, and gas
What is the charge of a proton?
Positive
True or False: A base tastes like vinegar and corrodes metal.
False- Vinegar is an acid.
What do we call a force that resists movement between two objects?
Friction
What is a magnet that is powered by an electric current and can be turned on and off?
An electromagnet
Which is denser- a one-inch block of gold or a one-inch block of wood?
The cube of gold because the atoms in gold are more tightly packed together and are more massive.
What is the charge of an electron?
negative
What do we call a mixture in which the individual parts cannot be easily seen?
a homogeneous mixture
What do we call the ability of someone or something to do work?
Energy
What is an inclined plane that is wrapped around a cylinder?
A screw
In which state of matter are the molecules the most active AND in which state are they least active?
Molecules are most active in their gas state and least active in their solid state.
What do the numbers inside the box of an element on the periodic table represent?
The atomic number and the atomic mass.
What do we call a mixture in which the individual parts CAN be easily seen?
A heterogeneous mixture
What does the law of conservation of energy state?
Energy cannot be created or destroyed.
What lever has the fulcrum in the center and the load and effort on opposite ends?
A first class lever