Density/Layers review

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the outer core?

Back

The outer core is the layer of the Earth that lies beneath the lower mantle and surrounds the inner core, composed mainly of liquid iron and nickel.

Front

Is oceanic crust more dense than continental crust?

Back

Yes, oceanic crust is more dense than continental crust.

Front

What materials make up the Earth's core?

Back

The Earth's core is primarily made of iron and nickel.

Front

What happens to objects that are less dense than water?

Back

Objects that are less dense than water will float on its surface.

Front

What is the relationship between density and buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, which depends on the object's density compared to the fluid's density.

Front

What is the difference between the upper mantle and the lower mantle?

Back

The upper mantle is less dense and more rigid, while the lower mantle is denser and behaves more like a viscous fluid.

Front

What is the crust?

Back

The crust is the outermost layer of the Earth, consisting of solid rock and is less dense than the underlying mantle.

Front

How does temperature affect density?

Back

Generally, as temperature increases, density decreases because substances expand when heated.

Front

What is the principle of flotation?

Back

The principle of flotation states that an object will float if it displaces a volume of fluid equal to its weight.