Nature of Science
The first step in scientific inquiry
What is observation?
Anything that has mass and takes up space.
What is matter?
The periodic table is arranged by this number.
What is atomic number?
A reaction that releases energy.
The gas removed from the atmosphere during photosynthesis.
What is carbon dioxide?
A testable explanation for observations.
What is a hypothesis?
A physical property describing mass per unit volume.
What is density?
Electrons in the modern atomic model move in these.
The type of bond formed when electrons are transferred.
What is an ionic bond?
The process that releases carbon dioxide when organisms break down glucose.
What is cellular respiration?
The variable that is measured in an experiment.
What is the dependent variable?
A state of matter with no definite shape or volume.
What is gas?
What are the same valence electrons?
The type of bond formed when electrons are shared.
What is a covalent bond?
Burning fossil fuels does this to atmospheric CO2
What is releases/increases CO2?
What is the independent variable?
Evidence of a chemical change that may occur during reactions?
What is gas production/color change/temperature change?
The lowest energy level of an electron.
What is ground state?
CO2 is this type of compound.
What is a covalent compound?
The greenhouse effect occurs when CO2 does this to infrared radiation.
What is traps heat?
A process where scientists check each other's research for accuracy.
What is peer review?
The law stating matter cannot be created or destroyed in a reaction.
What is the Law of Conservation of Mass?
Carbon has this many valence electrons.
What is 4?
FeCl2 is named this.
What is iron (II) chloride?
The Earth sphere where fossil fuels are found.
What is geosphere?