1
What is the substance of the physical world
matter
Which component of the scientific method involves gathering data in a orderly way
observing
What do logisticians call a statement of fact that can be used to make a conclusion about
proposition
The 3 basic soil substances that plants need to live are
primary plant food elements
What soil layer contains more minerals and less organic material
subsoil
What is the study of matter
science
In an if/then statement, what is the "then" part called
consequent
In what type of soil does grass grow best?
neutral or slightly acidic
The use of science to solve practical problems is called
technology
What is the layer of either porous rock or gravel-soil mixture that holds water
aquifer
What factor is changed when testing a hypothesis
independent variable
What is the process of speculation about objects or events of nature and formulating a sensible explanation
hypothesizing
What affects soil color
amount of organic material
Chemists express the degree of acidity or basicity of the substance using the
Ph scale
What is the top 5 to 15 cm of soil called
topsoil
What term describes the following sentence: "If a vehicle is an airplane, then it has wings"
hypothetical proposition
Which terms describes the ability of bedrock to inhibit water from easily passing through
impermeable
Which primary plant food element is essential for cell division, growth and plant maturation
phosphorus
Hypothesis are made using what type of reasoning
deductive
What is the general term for water below the soils surface
groundwater
What is the term for the factors that remain the same throughout an experiment
controlled variables
What is the ultimate purpose of inductive reasoning?
to determine the cause and effect
What word means a way of explaining an object or event by using a set of facts determined through experiments
theory
What is the surface of the water under the ground
water table
What soil material has the smallest and most tightly packed particles
clay