To ensure an experiment is fair, you should only change this many variables at a time.
What is one?
It takes the Earth this long to complete one full rotation on its axis.
What is 24 hours/one day?
This force pulls all objects toward the center of the Earth.
This force pulls all objects toward the center of the Earth.
Plants are called this because they can make their own food using sunlight.
What are producers?
This star is the center of our solar system and the primary source of energy for Earth.
What is the Sun?
This is a personal belief or feeling rather than a fact proven by data.
What is an opinion?
This type of rock is formed from the cooling of magma or lava.
What is Igneous?
This is the temperature at which water freezes in degrees Celsius.
What is 0 degrees?
This organ in the human body is responsible for pumping blood.
What is the heart?
This resource, like coal or oil, cannot be replaced once it is used up.
What is a non-renewable resource?
Scientists do this to their experiments multiple times to ensure their results are consistent.
What is replication or "trials"?
Florida’s main source of drinking water is found in these underground layers of rock.
What is an aquifer?
This type of energy is created by the movement of particles; we feel it as heat.
What is thermal energy?
This is the process by which plants use sunlight, water, and carbon dioxide to create sugar.
What is photosynthesis?
A duck’s webbed feet are an example of this—a characteristic that helps it survive in its environment.
What is an adaptation?
This is the part of the experiment that stays the same to keep the test fair.
What is a constant/controlled variable?
This process breaks down rocks into smaller pieces called sediment.
What is weathering?
An object that allows electricity to flow through it easily is called this.
What is a conductor?
Spiders, crabs, and insects all belong to this group of animals with jointed legs and exoskeletons.
What are arthropods?
This tool is used to measure the mass of an object.
What is a pan balance or triple beam balance?
Unlike an experiment, this type of scientific study involves observing the natural world without manipulating variables.
What is a observation?
These are the three main components of the Water Cycle.
What are evaporation, condensation, and precipitation?
Mixing salt into water creates this, where the salt is evenly distributed and cannot be easily filtered out.
What is a solution?
These are the four stages of a complete metamorphosis.
What are egg, larva, pupa, and adult?
This is the tendency of an object to resist a change in its motion.
What is inertia? (friction)