CK Science Land and Water Lesson 3

What is the most famous feature of Yellowstone National Park?

• Glacier

• Old Faithful

• Midway Geyser Basin

What is a geyser?

• An underground pocket of water

• A large lake

• A mountain

Where does the heat in a geyser come from?

• The sun

• The air

• Inside Earth

What kind of volcano can you walk across in Yellowstone National Park?

• An underwater volcano

• An above-ground volcano

• An underground volcano

What causes a geyser to form?

• Hot water mixes with clay soil

• Hot water bubbles up to the surface

• Hot melted rock pushes up and out through an opening

What is a hot spring?

• A pool of hot water

• A pool of lava

• A pool of steam

There is water under the ground.

• Yes

• No

What happens in an earthquake?

• The wind shakes trees

• The earth's crust cracks

• The earth does not change

What happens in a volcanic eruption?

• Lava flows from the top.

• A volcano disappears.

• Hot water steams from the top.

Draw a volcano.