Nature of Science
A testable, educated guess based on prior knowledge and observation.
What is a hypothesis!
This subatomic particle carries a positive charge.
What is a proton!
The chemical symbol "C" represents this essential element.
A dog drooling when it smells food or a plant bending toward light are examples of this biological characteristic.
What is response to stimuli (or environment)!
Represented by the acronym CHONPS, these are the six main elements that make up living things.
What are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, and Sulfur!
Because water molecules have uneven charge distributions (slightly negative on one side, positive on the other), water is classified as this.
What is polar!
In an experiment testing plant growth under different amounts of sunlight, this is the factor being measured as a result.
What is the dependent variable!
Found orbiting in outer energy levels, this particle carries a negative charge.
What is an electron!
The atomic number of any element on the periodic table directly tells you its total number of these particles.
What are protons!
Shivering in cold temperatures helps maintain internal stability, an example of this process.
What is homeostasis!
This versatile element forms the central backbone of all organic molecules.
What is Carbon!
Water's ability to dissolve many polar and ionic substances earns it this nickname.
What is the universal solvent!
This group in an experiment receives no special treatment and provides a standard for comparison.
What is the control group!
Found orbiting in outer energy levels, this particle carries a negative charge.
Holding the atomic number 13.
What is Aluminum!
This term refers to all the chemical reactions living organisms use to obtain and use energy,
What is metabolism!
Essential for liquid water, this element is also part of every single organic compound.
What is Oxygen or Hydrogen!
Insects can walk across a pond surface due to this property caused by cohesive forces.
These factors must be kept identical across all test groups to ensure the experiment stays fair.
What are controls or constants!
An atom with 8 protons, 8 neutrons, and 8 electrons has this atomic number.
What is 8 (Oxygen)!
You calculate an atom's mass number by adding together the total count of these two subatomic particles.
What are protons and neutrons!
While animals can do this to get around, it is NOT one of the 6 official criteria for life.
What is movement!
In the CHONPS acronym, the letter "P" stands for this element critical for DNA and cellular energy.
What is Phosphorus!
Plants pull water upward against gravity from roots to leaves using a combination of these two properties.
What is cohesion and adhesion!
Unlike a quick guess, this is a broad, well-supported explanation that has been repeatedly tested and backed by evidence.
What is a scientific theory!
Atoms of the same element always have the same number of protons, but isotopes differ because of a change in these specific particles.
What is Neutrons!
With atomic number 36, this is a noble gas.
What is Krypton!
A human having a baby or a cell dividing are examples of this criterion necessary for species survival.
What is reproduction!
In the CHONPS acronym, the letter "S" stands for this element found in proteins.
What is Sulfur!
Water resists sudden temperature changes because of this thermal property.
What is high specific heat or ability to retain energy!
Ignoring evidence that contradicts your prediction violates this step-by-step framework used by scientists.
What is the scientific method!
When a neutral atom gains or loses electrons, it becomes this type of charged particle.
What is an ion!
Symbols like "Na" for sodium don't match their English names because they originate from this historical language.
What is Latin!
This fundamental unit is the smallest structure capable of fulfilling all criteria for life and it is made out of these.
What is a cell made out of atoms!
Elements like Iron (Fe) or Sodium (Na) are vital for bodies, but they don't belong to CHNOPS because they are needed in these lower amounts.
What are trace elements!
Ice floats because hydrogen bonds lock water molecules into a open crystalline lattice, making solid ice less __________ than liquid water.
What is dense!