another name for the manipulated variable that is changed or tested in an experiment
What is an independent variable?
100
have many trees, shrubs, grasses and ferns, and a variety of animals
What is a forest?
100
the steep slope where the continent shelf drops to the bottom of the ocean floor
What is the continental slope?
100
the substance in a solution that is in the greatest amount; usually the liquid
What is a solvent?
100
a push or pull
What is a force?
200
another name for the responding variable (the result of, or response to, the manipulated variable)
What is the dependent variable?
200
have fertile soil and are covered with tall grasses
What are grasslands?
200
underwater volcanic mountains that divide the ocean floor into two parts
What is the mid-ocean ridge?
200
the substance in a solution that is in the least amount; usually the solid
What is a solute?
200
an object that when an unbalanced force acts on it, the object will move in the direction of the force
What is an object at rest?
300
determines the effect of an independent variable in an experiment, when all other variables are controlled
What is a controlled scientific investigation?
300
large bodies of saltwater divided by continents
What are oceans?
300
steep-sided canyons and deep, narrow valleys in the bottom of the ocean
What are trenches?
300
in a solution, the relationship of the amount of the solute to solvent
What is concentration?
300
an object that if an unbalanced force acts on it, the object will change the motion of the object in different ways depending on how the force is applied; the unbalanced force may speed the object up, slow it down, or make it change directions
What is an object in motion?
400
information from scientific observations and inferences
What is data?
400
land based ecosystems include forests and grasslands
What is terrestrial?
400
located on either side of the mid-ocean ridge and made up of low hills and flat plains
What is the ocean basin?
400
solutes dissolves in solvents in solutions in different amounts in given times
What is rate of dissolving?
400
affects the friction between objects in liquids and gases; affects the friction on a moving object under the following circumstances: air resistance or resistance of an object as it glides through water; in contact usually does not affect friction between two solids
What is the amount of surface area?
500
observations that use numbers (amounts) or measurements (including the unit label) or observations to make relative comparisons, such as more than, all, less than, few, or none
What is a quantitative observation?
500
water-based ecosystems may be fresh water (lakes and ponds) or saltwater (oceans, estuaries and saltwater marshes)
What is aquatic?
500
a narrow trench at the center of the highest part of the mid-ocean ridge
What is a rift?
500
a process used to separate solids that float from the remaining liquid in a mixture
What is floatation?
500
a change in force or a change in mass
What are the things that can effect the motion of an object?