How well do you follow Earth and space science news? Take one of our quizzes to find out!

Scientists recently found that a landslide in what country might have been the first Arctic landslide caused by climate change? Credit: Kristian Svennevig

Eos News Quiz | 22 March 2023


Previous quizzes

True or false? In California, transportation and agriculture are both significant contributors to nitrogen dioxide emissions. Credit: Amelia Cui, Unsplash








Eos News Quiz
20 March 2023

Why is phosphate sometimes added to the U.S. water supply? Credit: Kansas Water Science Center/USGS, Public Domain








Eos News Quiz
16 March 2023

When does Arctic sea ice reach its maximum extent each year? Credit: NASA Goddard Space Flight Center

Eos News Quiz
13 March 2023

What substances do volcanoes spew into the atmosphere? Credit: flydime, CC BY 2.0










Eos News Quiz
9 March 2023

How do moose help cool down a forest? Credit: Bryan Rodriguez, Unsplash







Eos News Quiz
7 March 2023

Which objects in the solar system have been discovered to have rings? Credit: ESA, CC BY-SA 3.0 IGO








Eos News Quiz
3 March 2023

What variables are thought to be involved in deep atmospheric convective activity that can produce hailstones? Credit: iStock.com/spxChrome








Eos News Quiz
28 February 2023

Our March theme focuses on rocks and rings. Are you more of a Saturn or a sequoia? Find out with our seriously silly quiz. Credit: Michel Arnaud








Put a Ring On It!
27 February 2023

What climate events can tree rings be used to decipher? Credit: iStock.com/Ja’Crispy









Eos News Quiz
24 February 2023

True or false? In a new study, scientists described a new method that can pinpoint where in a cloud a lightning strike begins. Credit: Mathias Krumbholz/Wikimedia, CC-BY-SA 3.0








Eos News Quiz
21 February 2023

The ocean is aqua / This poem is brief / This island is found / on the _____. Credit: alicia3690, CC0








Eos News Quiz
14 February 2023 ❤️

Which planet has a denser atmosphere, Earth or Mars? Credit: NASA/JPL-Caltech/USGS








Eos News Quiz
9 February 2023

How costly are natural hazards to maritime trade every year? Credit: Louis VestCC BY-NC 2.0








Eos News Quiz
3 February 2023

Geologists can harpoon the Whaleback anticline in which U.S. state? (Hint: It is a former coal mine located in the Middle Anthracite region). Credit: Universities Space Research Association/Earth Science Picture of the Day/Dave Kerr










Eos News Quiz
31 January 2023

True or False? Breakdown products from pharmaceuticals are always less toxic than their original parent compound. Credit: SharonDawn/Wikimedia Commons, CC BY-SA 4.0









Eos News Quiz
25 January 2023

Our February theme is Science at the Seafloor. Take our seriously silly quiz to see where you splash down. Credit: Andrés Dallimonti/Unsplash








Oh Say, Can You Sea?
24 January 2023

Which element’s isotopes did scientists recently use to predict plant water use? Credit: Nicholas_T/Flickr, CC BY 2.0








Eos News Quiz
18 January 2023

How thick was the ice that covered our planet during its Snowball Earth periods? Credit: Oleg Kuznetsov/Wikimedia, CC BY-SA 4.0








Eos News Quiz
11 January 2023

True or false? Scientists can measure wind speeds using drones. Credit: Jim Makos, CC BY-ND 2.0









Eos News Quiz
3 January 2023

Where does a large part of the world’s liquid freshwater supply come from? Credit: Credit: Dr. Andrew Fisher/Wikimedia Commons, CC BY-SA 4.0.
For the past 25 years, has Greenland consistently lost more ice than it gains each year? Credit: iStock.com/Michal Balada
True or false? Heavy physical cables are still necessary for the Internet to work as we expect it to. Credit: TeleGeography’s Submarine Cable Map, CC BY-SA 4.0
How many ice-free days can polar bears endure? Credit: Kristin Laidre
Aside from Earth, which solar system body offers the best evidence of plate tectonic activity? Credit: NASA/JPL-Caltech/SETI Institute








Eos News Quiz
6 December 2022

How fast is excascale computing? Credit: sdecoret/Depositphotos







Eos News Quiz
29 November 2022

Cubic kilometer for cubic kilometer, where is the world’s richest oil field? Credit: iStock.com/Gary Kavanagh








Eos News Quiz
18 November 2022

Are you a spark of lightning or a glacial glide? Find your signature Earth or space science phenomenon with our fun and scientifically silly 10-question quiz.








Find Your Phenomenon!
18 November 2022

Researchers recently completed an open-access geospatial database of the Prince Edward Islands. Where are the Prince Edward Islands? Credit: Liezel Rudolph








Eos News Quiz
14 November 2022

What species of hominins were hanging around Chew Bahir 60,000 years ago? Credit: Frank Schaebitz








Eos News Quiz
09 November 2022

Is there more lightning over sea or over land? Credit: Abel Escobar/Pixabay







Eos News Quiz
03 November 2022

To be useful in evacuation planning in places like Hawaii, models that forecast lava flows must accurately predict what characteristics?. Credit: A. Lerner/U.S. Geological Survey, Public Domain







Eos News Quiz
27 October 2022

During the summer monsoon, warm, moist air from which ocean blows across the Indian subcontinent?







Eos News Quiz
24 October 2022

True or false? Across the city of Indore, India, a network of low-cost sensors revealed that most air pollution comes from a single type of source. Credit: Ikshit Patel, Unsplash








Eos News Quiz
20 October 2022

The USGS released a new water cycle diagram to include what feature for the first time? Credit: Hayley Corson-Dosch/USGS VizLab








Eos News Quiz
13 October 2022

When did Pangea break up? Credit: Ömer F. Bodur







Eos News Quiz
13 October 2022

Carbon capture and storage wells need to be 800 meters deep. Why? Credit: Jeremy Bishop/Unsplash







Eos News Quiz
7 October 2022

By what process do loose agglomerations of sediments gradually compress under the weight of newly added material, contributing to land subsidence?








Eos News Quiz
5 October 2022

Although olivine is a relatively inexpensive mineral, it does have a gem-quality variety. What is it?







Eos News Quiz
28 September 2022

An underwater volcano helped Tonga gain a new island. Choose another island.
Credit: NASA Earth Observatory image by Lauren Dauphin, using Landsat data from USGS









What Ocean Are You?
27 September 2022

Coral bleaching results when what happens?






Eos News Quiz
23 September 2022

The “bomb pulse” has helped scientists accurately date organic materials. What bomb set off that pulse?








Eos News Quiz
21 September 2022

The “Millennium” drought, which lasted roughly from 1997 to 2010, primarily affected what region?








Eos News Quiz
16 September 2022

Glaciers in Kenai Fjords National Park, Alaska, can terminate over land, lakes, or the ocean. Which type of glacier is slowest to retreat?
Shown here is Holgate glacier.








Eos News Quiz
14 September 2022

What percentage of homes in Europe have air-conditioning?







Eos News Quiz
9 September 2022

Gigantic jets of lightning are the rarest transient luminous event on Earth. How often do they occur each year?








Eos News Quiz
7 September 2022

True or false? The “social cost of carbon” is defined as the economic benefits of emitting an additional 1 ton of carbon dioxide into the atmosphere.








Eos News Quiz
2 September 2022

Most deltas are susceptible to land loss during sea level rise, whereas others gain land because of changes in the courses of rivers. This famous delta is experiencing land loss in most areas but gaining in others. What delta are we looking at?









Eos News Quiz
31 August 2022

A new study analyzes the potential of social sensing for assessing natural hazards. What is social sensing?








Eos News Quiz
29 August 2022

What have scientists compared the shaking surface of the Sun to?

Eos News Quiz
25 August 2022

Scientists are pretty sure water flowed across the ancient Martian landscape. How did the water get there?

Eos News Quiz
25 August 2022

Look on the sunny side, whether it’s Bono or Baudelaire. Find your sun sign with our 10-question personality quiz.








What Sun Are You?
24 August 2022

By what two forces are hillslopes primarily shaped?







Eos News Quiz
23 August 2022

Astronomers have only found 8 planets around pulsars, those cosmic lighthouses that are born when massive stars die. By which methods have pulsar planets been found?








Eos News Quiz
18 August 2022

How does wildfire affect snowpack and snowmelt in the U.S. West?







Eos News Quiz
15 August 2022

What percentage of Colorado’s water does Denver Water, which serves about 25% of the state’s population, use?








Eos News Quiz
10 August 2022

According to new research, about how much methane do lakes (including Lake Carezza in Italy, pictured) release into the atmosphere every year? Credit: Umberto Salvagnin/Flickr, CC BY 2.0








Eos News Quiz
4 August 2022

What are the least understood planets in our solar system?







Eos News Quiz
2 August 2022

Are gases used for anesthesia during surgery more potent than other greenhouse gases like methane and carbon dioxide?








Eos News Quiz
29 July 2022

True or false? Changes in climate can alter chemical concentrations in rivers.







Eos News Quiz
27 July 2022

Jonas Vingegaard of Denmark won the Tour de France. You’ve got a week to follow an international sports competition. Where are you going?

Researchers propose a new way to sort minerals. On what is the new categorization based?







Eos News Quiz
22 July 2022

How well do you know the Bay Area’s faultlines?







Eos News Quiz
22 July 2022

True or false? You can safely roast marshmallows over an erupting volcano.







Eos News Quiz
18 July 2022

The Chassigny meteorite fell to Earth from Mars more than 200 years ago. Which part of Mars did this meteorite come from?








Eos News Quiz
18 July 2022

Name that mission! NASA’s _____ lander has provided insights and observations about seismic waves on Mars.








Eos News Quiz
14 July 2022

What is the James Webb Space Telescope slated to observe during its first year of observations:








Eos News Quiz
13 July 2022

High school students from the Azores used a Raspberry Pi to measure Earth’s magnetic field and pinpoint its pole locations using data from the ISS. Where are the Azores?








Eos News Quiz
5 July 2022

In Florida, stormwater ponds protect the quality of nearby waterways by containing sediment, which sinks to the bottom of the ponds, and prevent erosion by limiting runoff. How many stormwater ponds are in Florida?








Eos News Quiz
22 June 2022

InSight’s magnetometer was originally intended as a support for which area of study on the Red Planet?








Eos News Quiz
17 June 2022

As wildfire smoke rises into the atmosphere, sunlight spurs chemical reactions that alter the smoke’s original components (primary organic aerosols) and create new ones, called what?








Eos News Quiz
16 June 2022

Lake Snow Eagle is 198 meters (650 feet) deep, 48 kilometers (30 miles) long, and 14 kilometers (9 miles) wide. Why was it discovered only 4 years ago?








Eos News Quiz
15 June 2022

A coronal mass ejection from a star 450 light years from Earth sent two billion billion pounds of mass rocketing into space. (Yes, billion billion.) Where is the coronal mass ejection on this illustration?








Eos News Quiz
10 June 2022

What information is helping scientists study ancient landslides off the coast of New Zealand to better assess the modern-day risk of tsunamis around the Tasman Sea?








Eos News Quiz
3 June 2022

The January eruption of Hunga Tonga–Hunga Ha’apai, in Tonga, was a one-in-a-thousand-year blast. Where in the world is Tonga?








Eos News Quiz
13 May 2022

What innovative tool or tools did scientists use to track a category-4 hurricane directly from the ocean?








Eos News Quiz
6 May 2022