Arbor Day
Earth Day
Natural Landmarks

What does arbor mean in Latin?

(A) Branch (B) Plant (C) Flower (D) Tree

(D) Tree


What day is Earth Day?

April 22nd


What species of tree is the tallest tree in the world?

The world's largest tree by height is a coastal redwood called Hyperion, located in California. It towers at 380 feet. For reference, that's 1.25 times bigger than the Statue of Liberty in New York.


Where is the world’s largest coral reef?

The Great Barrier Reef off the coast of Australia


This is a common way that people celebrate Arbor Day.

Planting Trees.


Who was the US President who, in 1970, signed the Clean Air Act and the National Environmental Education Act?

President Richard Nixon. The goal was to foster the growth of a strong American economy and industry while improving human health and the environment.


What do you call a tree that does not lose its leaves in the fall?



True or False. Niagara Falls is a single waterfall on the border of US and Canada.

False. Niagara Falls is a group of 3 waterfalls, spanning the border between Ontario (Canada) and New York (United States).


The first Arbor Day was celebrated in Nebraska in what year?

(A) 1903, (B) 1864, (C) 1872, (D) 1935

(B) 1872. A journalist by the name of Julius Sterling Morton proposed a day that would encourage people to plant trees in their community. More than one million trees were planted on April 10th, 1872.


Which country is home to the greatest biodiversity of plants and animals?

(A) Costa Rica (B) Brazil (C) China (D) Ecuador

(B) Brazil is estimated to host between 15-20% of the world's biological diversity.


The oldest known tree is a Great Basin bristlecone pine, known as Methuselah, found in eastern California. How old is this tree?

(A) 500-years-old, (B) 1,000-years-old (C) 5,000-years-old (D) 10,000-years-old

(C) 5,000-years-old (approximately)


What is the largest desert on Earth?

The largest desert on Earth is Antarctica. It is considered a desert because it receives very little rain or snowfall. 

The largest hot desert on Earth is the Sahara Desert in Africa.


Which state has the most forest cover in US?



More than half of the breathable oxygen in the world comes from where?

(A) Forests, (B) Clouds, (C) Flowering Plants, (D) Oceans

(D) Oceans, the majority of which is provided by tiny plants called phytoplankton.


A type of tree that can grow in salty ocean water. (hints below)

(a) Coconut, (b) Mangrove, (c) Palm, (d) Mango

(b) Mangrove


Where is the largest active volcano on the planet?

(A) Italy (B) United States (C) Japan (D) Mexico

(B) United States. At more than 4 kilometers above sea level, Mauna Loa in Hawaii is the largest volcano on the planet.


True or False. Arbor day is celebrated on the same day in every US state.

False. National Arbor Day is the last Friday in April, but many states observe Arbor Day on different dates throughout the year based on best tree planting times in their area. 

For example, Florida celebrates Arbor Day in January, and Texas celebrates in November.


Approximately what percentage of the water in the world can be used to meet ALL needs of humans?

(A) 1% (B) 5% (C) 25% (D) 40%

(A) 1%. Nearly 97% of the world's water is salty or otherwise undrinkable. Another 2% is locked in ice caps and glaciers. That leaves just 1% for all of humanity's needs (agricultural, residential, manufacturing, community, and personal needs).


What is the Massachusetts State Tree? (hints below)

(A) Maple, (B) Oak, (C) Elm, (D) Birch

(C) Elm. 

Specifically, the American Elm, commemorating the fact that General George Washington took command of the Continental Army beneath an American elm tree on Cambridge Common in 1775


Which American National Park is home to the famous geyser, Old Faithful?

Yellowstone National Park. Established by President Ulysses S. Grant in 1872, and is considered the first National Park.