Terms
matter
what is the top 5 to 15 cm of soil
topsoil
density
the use of Science to solve practical problems
technology
in what type of soil do plants grow best
neutral or slightly acidic
what factor is changed when testing a hypothesis
independent variable
what type of soil allows the most air and water into itself
sandy soil
substance composed of only 1 type of atom
element
what term describes the ability of bedrock to inhibit water from easily passing through
impermeable
what is a layer of either porous rock or gravel soil mixture that hold water
aquifer
what is the term for factors that remain the same throughout an experiment
controlled variables
what type of soil allows the most rain to run off
clayey soil
atoms linked together in a group
molecule
what do logicians call a statement of fact that can be used to make a conclusion
proposition
what is the surface of water under the ground
water table
what is the study of matter
science
what soil layer contains the more mineral material and less organic material
subsoil
amount of matter in an object
mass
which primary plant food elements is essential for cell division, growth and maturation
phosphorus
what is a model of design that will be used for testing
prototype
what is the general term for water below the soil's surface
groundwater
what are the 3 basic soil substances that plants need to live called
primary plant food elements
substance containing 2 or more types of atoms bonded together
compound
what affects soil color
amount of organic material
what are the minimum characteristics that a design must have to function at all
criteria