This large amphitheater was used for gladiator battles and public spectacles.
The Colosseum
This is the latitude line at 0 degrees, which divides the Earth into the Northern and Southern Hemispheres.
Equator
This animal has three hearts, two of which pump blood to the gills, while the third pumps it to the body.
Octopus
The first human to walk on the Moon was:
Neil Armstrong
These tiny plastic particles, smaller than 5 millimeters, are often the result of larger plastic items breaking down in the environment.
microplastics
Found in India, this white marble mausoleum was built by Emperor Shah Jahan for his wife.
The Taj Mahal
This sea between Israel and Jordan is so salty that people can float effortlessly.
The Dead Sea
This creature can re-grow its head after decapitation.
Sea Star
This space phenomenon is caused by charged particles from the Sun interacting with Earth’s magnetic field.
An aurora (northern/southern lights)
This renewable energy source comes from the heat beneath the Earth's surface and is used in geothermal power plants.
geothermal energy
This canyon in Arizona is known for its stunning red rocks and vast size.
The Grand Canyon
This country spans 12 time zones, more than any other in the world.
Russia
This shark has no bones and instead has cartilage, making its body flexible and light.
Hammerhead Shark
This galaxy is our own, known for its spiral shape.
Milky Way
This type of natural resource is finite and cannot be replenished on a human timescale, such as coal or oil.
non renewable resource
This ancient city in Peru, built by the Incas, is often called the “Lost City.”
Machu Picchu
Mount Everest, the tallest mountain in the world, is located on the border of these two countries
Nepal and China
Dolphins communicate with each other using these high-pitched sounds, which they use for navigation and social interaction.
echolocation
This planet has the shortest day, rotating fully on its axis in just 9 hours and 55 minutes.
Jupiter
This is a natural or artificial reservoir that absorbs more carbon dioxide from the atmosphere than it releases, helping to reduce the impact of climate change.
Carbon Sink
Found in the Pacific Ocean near Chile, this island is famous for its giant stone statues called Moai.
Easter Island
This is the most populated city in the world, with over 37 million people.
Tokyo
This animal can survive without a heart or brain for months by shutting down its bodily functions entirely.
Jellyfish
This is the stage after a supernova when a star collapses into an extremely dense point in space.
Black Hole
What is the process called when corals expel the algae living in their tissues due to stress from warmer water temperatures, turning the coral white and often leading to its death?
Coral Bleaching