Sailing Stones. What is it? Geological phenomenon that can be observed in dried-up lake of Racetrack Playa (in Death Valley)

Slides:

Advertisements

Similar presentations

Advertisements

Glaciers By Dylan & Tony.

Changing Earth TEK 5.7B.

Our Changing Earth.

Ice in a Straw Activity Question-What will happen if I fill a plastic straw with water, plug each end with clay, and freeze it? Hypothesis-If I fill a.

Vertaald uit het Spaans – Freddy Storm 07/2011 ICE BALLS.

Changes to Earth’s Surface.

Erosion and Deposition by Wind

Test Questions Included!

Changing Earth’s Surface

Changes to Earth’s Surface Chapter 9

Earth Systems and Patterns: SC.5.E.7.3

8th Grade Science Unit 8: Changes Over Time

$100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Weathering and Erosion Volcanoes, Earthquakes, Uplift.

Forces Cause Change TEKS 3.6B. The student knows that forces cause change. The student is expected to: –Identify that the surface of the Earth can be.

Erosion and Deposition by Wind,

Ch.9 Erosion and Deposition. Section 6: Wind How Wind Causes Erosion – Sand dune is a deposit of wind-blown sand – Wind causes erosion by deflation and.

20,000 Kilometers Over Death Valley: The GPS View of the Sliding Rocks Paula Messina Geology Department San José State University.

Unit 1 Lesson 4 Erosion and Deposition by Wind, Ice, and Gravity

Transportation TRACTION SALTATION SUSPENSION SOLUTION

Changes to the surface of the Earth….

COLD WEATHER!. Antarctica. In Antarctica, the highest temperature is in the Summer and is about -25 degrees Celsius. In Antarctica, the lowest temperature.

Honey, I shrunk the glacier. Extent of ice during Pleistocene glaciations.

Science STAAR Review QUIZ

How does water affect Earth’s features?

Weathering and Erosion

Topic 2 – Earth’s Frozen Water What is a Glacier? Large bodies of moving mass of ice and snow are called glaciers. An ‘ Ice Cap ’ is a glacier that forms.

Day #2-Processes That Shape Ocean Basins and Drainage Section 2.3.

27. Wind work Dan Barker April 2009 North shore, Long Island Sound.

Earth Science Review.

WHAT DO YOU ALREADY KNOW ABOUT THEM ? ANSWER TRUE OR FALSE.

Unit 8 Lesson 3 Erosion and Deposition by Wind, Ice, and Gravity

Erosion of Earth’s Surface SWBAT identify agents of erosion; describe the effects of erosion.

The Water Cycle.

Density.  Which is heavier- a pound of lead or a pound of feathers?  Most people will answer lead, but the weight is exactly the same  They are normally.

Erosion and Deposition Pages D58-D64. Mass Wasting.

Weathering and Erosion.

Weather Maps and Patterns Moving air creates a low pressure system.

Slow Changes to Earth’s Surface ROW 1ROW 2ROW 3 ROW 4 ROW 5 Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500.

Changes on the Earth Weathering and erosion. Weathering is The breakdown of rock at or near the earth’s surface into smaller and smaller pieces 2 types.

By Diana Thomas – Topaz Elementary School

THE GIANT'S CAUSEWAY IN NORTHERN IRELAND CONSISTS OF MORE THAN 40,000 INTERLOCKING VOLCANIC ROCK PILLARS, MOST OF WHICH ARE HEXAGONAL, ALTHOUGH SOME HAVE.

There is no meteorological term for this natural phenomenon which happens when large amounts of snow fall around large lakes or oceans. With the.

Begin Winter is the coldest time of year and has the fewest hours of daylight, with shorter days and longer nights. Do you agree? YesNo.

WHAT’S WRONG WITH THE WATER?. Warm Up 1)What does the word phenomenon mean? 2) How is wind responsible for upwellings (which is the movement of water.

The Study of Earth’s Landforms. Where Do You Live? =

Explain how glaciers shaped Indiana's landscape and environment. Activity:

Weathering – What is it? Copyright © 2010 Ryan P. Murphy.

Chapter 3 Erosion and Deposition Section 4 Glaciers

The Earth’s surface is always changing!

Forces that Shape the Earth. 1 The sun, planets, and other bodies in space solar system.

Shaping Our Landscape Part 2. Tectonic Forces Build new earth and build the land up through Mountains building (convergent boundaries) Volcanoes Faulting.

Properties of Water SC.912.L Polar bears spend most of their lives roaming the Arctic on large sheets of floating ice, using them as platforms.

Who Wants to Be A Geologist? This is a picture of what landform?  A) plateau  B) mountain  C) plain  D) valley.

Convection Currents  An area of Earth’s surface is heated by the sun’s rays.  Air over heated surface expands and becomes less dense and the air pressure.

Social Studies 11 Planet Earth and it’s functions.

Lesson 2: What Causes Changes to Earth’s Landforms? What are some landforms we already learned about?

Weathering and Erosion. Wearing Down the Land from Above In addition to the tectonic processes operating within the Earth, there are forces operating.

Wind. What is Wind? Wind is the movement of air from a region of high pressure to a region of lower pressure. These areas of high and low pressure are.

The Curious Phenomenom of

ANSWER SHEET LISTENING (PartⅠ~ Ⅳ) READING (PartⅤ ~ Ⅶ) NO

What is unusual about the rock?

Understanding Erosion, Deposition, and Burial

Lunar Eclipse Lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow. This can occur only when the Sun, Earth, and the Moon.

Where? What? Why? When? How? Objective: To investigate what processes could be responsible for the Sliding.

Reflectivity and Pedestrian Safety

Ocean Topography Chapter 13

Classroom Reading Activities

Presentation transcript:

Sailing Stones

What is it? Geological phenomenon that can be observed in dried-up lake of Racetrack Playa (in Death Valley)

How does it work? The stones move along the surface, leaving behind long traces. The stones are moving in winter only, but it doesn’t happen every year. Their traces are visible for a few years.

How long are their traces? Traces have got different lengths from a few to several meters. The longest trail had 201 meter. meters !

How is it possible that they are moving? Geologists think that this is due to wind and mud but wind can’t move stones which weight as much as human. Some people think that this happens because of freezing water at night in winter, which creates ice sheets. Widespread winds in Death Valley are able to move the stones.

Nobody has seen moving stones and cameras haven’t registered it yet.

Why is it so amazing? Stones are moving parallel and suddenly one of them changes the direction of movement.

What makes them move? No one can answer this question.

Sandra Żyła class 2b