Question

A student is building a model to demonstrate and explain mantle convection. which of the following models is most accurate

a toy bulldozers are placed on opposite sides of a carpet, causing the carpet to crumble
b. a bar magnet is placed inside a ball, causing iron fillings to form a pattern around the ball
c. an electric current is passed through a copper wire surrounding a nail, causing the nail to become magnetized
d. a lamp heats a waxy substance in the bottom of a container, causing it to rise up to the top of the container, where it then cools and sinks again

Answer 1

Which model is most accurate? a. Toy bulldozers are placed on opposite sides of a carpet, causing the carpet to crumple. b. A bar magnet is placed inside a ...

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