Spooky Lakes October 2nd DOUBLE FEATURE

What is an ocean current?

• A geological formation under the sea.
• A steady wave in the ocean, it removes sand from shoes.

• A type of marine animal.
• A continuous flow of water in the ocean, it creates suction near coastlines.

What forms the basalt columns and sea stacks in Iceland?

• Volcanic activity

• Salt currents

• Old glaciers

• Sea foam

What forms the black sand on this Icelandic beach?

• Weathering of volcanic rock over millions of years

• Erosion of mud from the mountains over hundreds of years

• Fossils of clams are crushed over thousands of years

• The sun bakes the yellow sand over billions of years

The water here is alkaline. What does that mean?

• It contains a high level of base or basic salts

• It contains acids like hydrochloric acid

• It tastes like Celsius energy drink

• It cannot evaporate without human intervention

How do alkali flies swim underwater?

• The hairs on their body trap air in a bubble around them

• Their stomachs produce oxygen

• They practiced a lot at Wentzville Rec Center pool

• They have long narrow bodies and they do not need air