ATOMS
Scientific Method
Matter
Periodic Table
Energy
100
the nucleus is composed of what
What are protons and neutrons
100
an organized process used to gather observations and then test a hypothesis
What is an experiment
100
Four states of Matter
What is solid, liquid, gas, and plasma
100
The horizontal rows of the periodic table
What are the periods
100
energy can neither be created nor destroyed but can only change from one form to another
What is Law of Conservation of Energy
200
surrounding the nucleus with a negative charge
What is electrons or electron cloud
200
In an experiment, the condition that changes as a result of manipulating the independent variable
What is a dependent variable
200
Has a pH of 6.99 or less
What is an acid
200
the vertical columns in the periodic table
What are groups or families
200
Energy that is stored in an object based on its position or chemical composition
What is potential energy
300
Discovered that electrons are in a static orbit or specific energy levels
Who is Bohr
300
convert the following number to scientific notation 200,000,000,000
What is 2.0 x 10 11
300
A physical combination of two or more substances, that can be separated by chemical means is
What is a mixture
300
The elements located along the stair-step line on the periodic table
What are metalloids
300
energy of motion
What is kinetic energy
400
Protons and neutrons are made up of these smaller particles
What are quarks
400
In an experiment, the condition that is manipulated to cause a change in the dependent variable is called
What is an independent variable
400
The elements are located to the left of the step-stair on the periodic table and tend to lose electrons in chemical reactions, forming a positive ion
What are metals
400
The elements are located to the left of the step-stair on the periodic table and tend to lose electrons in chemical reactions, forming a positive ion
What are metals
400
transfer of thermal energy by direct contact ex. touching the handle of a pot
What is Conduction
500
The atomic number is the same as
What is protons and electrons
500
The SI unit for length is
What is meter
500
When water vapor in the air changes state directly to frost on the grass the process is called
What is sublimation
500
the 3 in front of 3HCl is the
What is coefficient
500
a battery or food is an example of what energy
What is chemical energy
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