3 of 53 of 5 Items
Question
How did new evidence found by Marie Tharp and Bruce Heezen add onto continental drift and create the theory of plate tectonics? (1 point)
Responses
They showed what the oceans’ floors looked like helped explain how continents move over time.
They showed what the oceans’ floors looked like helped explain how continents move over time.
They proposed that continents are pieces of the Earth's crust floating on top of the mantle.
They proposed that continents are pieces of the Earth's crust floating on top of the mantle.
They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together.
They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together.
They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle.
They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle.
Which piece of empirical evidence is qualitative data?(1 point)
Responses
The tree is eight feet tall.
The tree is eight feet tall.
The bicycle speed is 12 miles per hour.
The bicycle speed is 12 miles per hour.
The soup tastes salty.
The soup tastes salty.
The water temperature is 80ºF.
The soup tastes salty.
Which word best describes the statement that mass is neither made nor destroyed by chemical reactions or physical changes?(1 point)
Responses
hypothesis
hypothesis
theory
theory
experiment
experiment
law
law
5 of 55 of 5 Items
Question
Which part of Newton's second law of motion explains why it is easier to push an empty cart than a full one?(1 point)
Responses
A greater force will cause a greater increase in acceleration.
A greater force will cause a greater increase in acceleration.
An object with greater mass will react with a greater force.
An object with greater mass will react with a greater force.
An object with greater mass requires less force to move.
An object with greater mass requires less force to move.
A greater force is needed to move an object with a greater mass.