This is the one variable that you change in an experiment.
Independent variable
Deforestation can cause this effect on the Earth's surface.
Erosion
An H-R Diagram is a graph that plots temperature and this.
Brightness
Mass divided by volume
Density
Atoms to molecules to cells to tissues to organs to organ systems to this.
Organisms
Which variable do you watch and measure throughout an experiment?
Dependent Variable
This can occur with the movement of tectonic plates along fault lines.
Earthquake
This is smaller than a galaxy but larger than a star.
Solar System
This is the bending of waves as they pass through a different medium.
Refraction
What is contained in a plant cell?
Cell walls and chloroplasts
This is when a scientist repeats their own experiment.
Repetition
This is the solid outer part of the Earth, and includes the crust.
Lithosphere
What order does the Earth, Sun and Moon have to be in for a solar eclipse?
Earth - Moon - Sun
When a roller coaster reaches the top of a hill, it has its maximum of this type of energy.
Potential
What is an example of parasitism?
A tick living on a dog.
This is when one scientist performs the experiment of another scientist.
Replication
This is the sphere of the Earth which contains glaciers.
Cryosphere
This is caused by the moon's gravitational pull.
Tides
One is a measure of the force of gravity, the other is a measure of matter.
Weight and mass
Define Hereditary
The passage of genetic instructions from one generation to another.
This is not a controlled experiment, but is used when scientists study organisms in their natural surroundings.
Observational study
Unlike weather, which can change daily, this is the average pattern of atmospheric conditions such as temperature.
Climate
Orbiting around the Sun by planets is caused by these 2 things.
Gravity and Interia
Water boiling is an example of this kind of change.
Physical
What is extinction?
Failure of a species to adapt to a changing environment/having no living members; no longer in existence.