Convection Currents and Density

What happens to the color of the solution when a base is added to the universal indicator?

• It turns green.

• It remains colorless.

• It turns blue or purple.

• It turns red.

Why does the ball no longer fit through the ring after being heated?

• The mass of the ball increases.

• The volume of the ball decreases.

• The volume of the ball increases.

• The mass of the ball decreases.

What is the relationship between volume and density when the volume increases?

• Density remains the same.

• Density becomes zero.

• Density decreases.

• Density increases.

How do convection currents affect weather patterns?

• They only affect ocean currents.

• They drive weather patterns.

• They cause earthquakes.

• They have no effect on weather.

In what natural phenomenon do convection currents play a role?

• Only in the atmosphere.

• Only in the ocean.

• In the sun, oceans, and weather patterns.

• Only in man-made systems.