which of the following statements best describes the purpose of forming a hypothesis in the scientific method
to prove a theory correct
to make predictions about an outcome of an experiment
to collect data and analyze results
to communicate findings with others
The following statement best describes the purpose of forming a hypothesis in the scientific method: to make predictions about an outcome of an experiment.
which of the following is an accurate definition for a scientific theory?
an educated guess about a phenomenon
a well-tested explanation that explains why a scientific phenomenon occurs / occurred
a description of something that has happened
an uneducated guess about a phenomenon
A well-tested explanation that explains why a scientific phenomenon occurs / occurred is an accurate definition for a scientific theory.
which statement correctly describes the relationship between thermal energy and particle movement?
as thermal energy increases there is less particle movement
as thermal energy increases particle movement does not change
as thermal energy increases it is not possible to predict particle movement
as thermal energy increases there is more particle movement
The statement that correctly describes the relationship between thermal energy and particle movement is: as thermal energy increases, there is more particle movement.
what happens to the density of a material if you have a larger piece of it?
A: the density will be smaller because the mass Remains the Same as the volume increases
B: the density will remain the same because the mass and volume will remain the same
C:the density will remain the same because the mass and volume will both increase in the same way
D:the density will be greater because the mass increases but the volume Remains the Same
The answer is C: the density will remain the same because the mass and volume will both increase in the same way.
Cobalt has a mass number of 59 and an atomic number of 27 a student wants to create a model of cobalt atom which statement about the models is correct
the model should show 27 protons and 32 neutrons
the model should show 59 protons and 27 neutrons
the model should show 27 protons and 27 neutrons
The Model should show 32 protons and 59 neutrons
The correct statement is: the model should show 27 protons and 32 neutrons.
sodium reacts with chloride to form the compound sodium chloride or salt. if the total mass of the reactants is 58.44 AMU what will be the total mass of the products
60 amu
116.88 amu
58.44 amu
29.22 amu