It's The Metric
A Link in the Chain
Up, Up and Away
Land of the Symbols
Show me the Money
10

This metric prefix is a “thousand” times bigger than the base unit.

kilo

10

Animals that eat only meat fall into this category of the food chain.

carnivore

10

This is the layer closest to Earth’s surface where we experience weather.

troposphere

10

This statue, a gift from France, stands as a welcoming symbol of freedom in New York Harbor.

Statue of Liberty

10

At age six, she became a symbol of bravery as she desegregated a school in the South.

Ruby Bridges

20

If you shrink something down to one-tenth its size, use this prefix.

deci

20

This process lets plants turn sunlight into food and energy.

photosynthesis

20

Airplanes prefer to fly in this smooth layer, where the ozone layer is found.

stratosphere

20

This landmark was completed in the 1800s to honor the first U.S. president, and it has this unique shape, resembling an ancient Egyptian structure called an obelisk?

Washington Monument

20

This inventor and author made a famous wooden clock, one of the first of its kind in America, and mapped out the stars.

Benjamin Banneker

30

A penny is also called one of these, and this metric prefix meaning.

centi

30

In every food chain, plants are this essential starting point.

producer

30

If you see a “shooting star,” it’s burning up in this atmospheric layer.

mesosphere

30

DAILY DOUBLE

On the Great Seal, this bird holds an olive branch in one talon and arrows in the other, representing both peace and strength.

eagle

30

Known for her role in The Hungers Games, this actress is also an activist for social justice and representation.

Amandla Stenberg

40

This prefix means "ten times" the base unit and is used to measure distances on land.

deca

40

With no natural enemies, this top-level predator keeps food chains in balance.

apex predator

40

 In this layer, auroras light up the sky, and temperatures can reach 1,500°C!

thermosphere

40

This historic building in Philadelphia saw the signing of the Declaration of Independence in 1776.

Independence Hall

40

At just 15, she created a device to detect lead in water, becoming a symbol for young scientists everywhere.

Gitanjali Rao

50

This prefix, meaning "one thousandth," is used to measure tiny distances, like the width of a human hair.

milli

50

An animal that is at the third level on the food chain, often feeding on smaller consumers.

tertiary consumer

50

The outermost layer, where particles of air are so sparse they almost drift into space.

exosphere

50

This anthem, written during the War of 1812, was inspired by a flag flying over Fort McHenry.


The Star-Spangled Banner

50

This groundbreaking science fiction author explored opened the door for African Americans and other minorities to enter the genre. 

Samuel Delaney