Quiz 3 (2nd term)

When do particles move faster?

• In hot water

• In cold water

Why does ice float?

• Due to convection currents

• It is more dense than water.

• It is less dense than water.

What causes convection current in the Earth?

• The unequal heating on each layer inside the Earth.

• The crusts outer layer.

• The temperatures we feel outside.

What is an example of a convection current?

• Touching a hot spoon that was in a soup bowl.

• Feeling the suns rays on a nice summer day.

• Touching an iron skillet after cooking and feeling the heat.

• Movement of gas in a hot air balloon.

In convection, WARM air

• Rises
• Sinks

Energy for convection on the Earth comes from...

• The sun
• The moon
• Solar winds
• The ocean

Which is true?

• Cold air replaces warm air?

• Warm air replaces cold air?

Which is true?

• Cool air is LESS dense

• Warm air is LESS dense

What landform causes the rain shadow effect?

• mountains

• lakes

• plains

• valley

As you go to the top of a mountain, what happens to the air temperature?

• nothing

• it decreases

• it increases

• it fluctuates between warm and cold