Exploring Inner Earth and Heat Convection Currents

Miss Mallory hosts a nature class exploring the Earth's inner workings, focusing on the crust, mantle, and core. The class includes a hands-on activity simulating convection currents using household items. The session also discusses how these currents affect weather patterns. The class concludes with a Q&A session, encouraging curiosity about Earth's processes.

What materials are needed for the activity demonstrated by Miss Mallory?

• Ceramic mug, soda, coconut oil, ink, salt

• Plastic cup, milk, olive oil, paint, baking soda

• Glass jar, water, vegetable oil, food coloring, Alka-Seltzer

• Metal bowl, juice, sunflower oil, dye, vinegar

Tags

NGSS.MS-ETS1-1

What percentage of the Earth's volume does the crust make up?

• 10%

• 1%

• 50%

• 25%

What is the primary composition of the Earth's mantle?

• Metallic core

• Gaseous elements

• Liquid water

• Solid rock that can move

What is the term used to describe the movement of magma within the Earth's mantle?

• Conduction

• Diffusion

• Radiation

• Convection currents

How thick is the Earth's mantle?

• 180 kilometers

• 500 kilometers

• 2900 kilometers

• 100 kilometers

What happens to magma as it gets closer to the Earth's surface?

• It cools down and solidifies

• It heats up and rises

• It evaporates

• It turns into gas

Tags

NGSS.MS-PS1-4

In the activity, what does the Alka-Seltzer represent?

• The cooling of magma

• The heat causing magma to rise

• The Earth's core

• The Earth's crust

Tags

NGSS.MS-PS1-4

Why do oil and water not mix in the activity?

• Because they have different colors

• Because water is denser than oil

• Because oil is denser than water

• Because they have the same density

What is the purpose of adding food coloring in the activity?

• To make the water evaporate

• To make the oil denser

• To visualize the movement of water

• To change the temperature of the mixture

What natural process outside the Earth's crust is similar to convection currents in the mantle?

• Mountain formation

• Ocean currents

• Weather patterns

• River flow

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6