Kid’s Tree Facts: Test Your Knowledge About Trees

Vivian Duncan is an editor with 8 Billion Trees and loves to take care of her own plants.Written by Vivian Duncan

Quizzes Tests | December 21, 2021

Think you know your trees? 

An 8 Billion Trees graphic of a kid with trees, testing their tree facts knowledge.

Test your knowledge with this kid’s tree quiz!

Question 1) I produce acorns that squirrels love to eat. What type of tree am I?

  • The oak is a deciduous tree, which means it sheds its leaves and drops seeds in the fall. Oak tree seeds are called acorns! Squirrels love to eat them and bury them to eat over the winter months, when there won’t be as much food available.1

A redwood tree trunk at Sequoia National Park in California, with an 8 Billion Trees watermark.Question 2) I am the tallest tree in the world. What tree am I?

  • A Sequoia (pronounced “Suh-coy-uh”) is sometimes called a Giant Redwood because of its red bark. These trees usually grow in California, USA, and are big enough to have tunnels that people can walk or drive through!1

Question 3) What is the age of the oldest living tree on earth?

  • The oldest tree in the world is a bristlecone pine that is 5,062 years old.2 That’s even older than the pyramids that the ancient Egyptians built!3


Question 4) Where can you find the oldest living tree?

  • That bristlecone pine resides in the White Mountains of California, alongside other ancient trees. The second oldest tree is also in California, a bristlecone pine that’s 4,845 years old!2


Question 5)  What do you call a tree that doesn’t lose its leaves in the fall?

  • An evergreen tree is the counterpart to a deciduous tree… unlike deciduous trees that lose their leaves in the fall, evergreen trees stay green all year long, and usually have needle-type leaves, like in pine trees, firs, and spruces.4


Question 6) Which season does the tree’s leaves turn from green to red, orange, or yellow?

Great Smoky Mountains National Park forest trees in spring, dappled sunlight.

  • In the fall, deciduous trees’ leaves dry up, turning red, orange, and yellow, and fall off… hence the name of the season!

Question 7) What type of gas do trees and other plants produce that is helpful to humans?

  • Trees suck Carbon Dioxide (CO2) out of the air, which is what we breathe out… and then the trees breathe out Oxygen, which is what we breathe in! So our lungs and trees are matched perfectly to help each other live.5

Question 8) Which is the fastest growing tree?

  • Bamboo grows super fast, which is why it is a much more sustainable option than other types of wood.6 In fact, it can grow 3 feet in one day… that’s the same height as the average five year old!7 

Question 9) How many (estimated) trees are living on earth?

Leafless deciduous tree trunks in the Great Smoky Mountains National Park in Tennessee, with an 8 Billion Trees watermark.

  • Scientists estimate that there are about 3.04 trillion trees in the world, which means there are about 422 trees for every person.8 Theoretically, everyone could have their own personal forest!

Question 10) I am a type of tree that can grow in salty water, you can find me along rivers and shores. What tree am I?

  • You may have thought palm tree, but mangroves grow both along ocean shores and along rivers, in water that is “brackish,” meaning it’s a mix of fresh and salt water. These cool trees are very important to protecting these very delicate ecosystems!9



1Trees For Kids Quiz | 10 Questions. (n.d.). Retrieved July 29, 2021, from 

2(2016, August 23). What Is the Oldest Tree in the World? Retrieved July 29, 2021, from 

3Pyramids of Giza | National Geographic. (n.d.). Retrieved July 29, 2021, from   

4Evergreen Trees | Fast Growing Evergreen Trees. (n.d.). Retrieved July 29, 2021, from 

5The Earth Has Lungs. Watch Them Breathe. (2016, March 9). Retrieved July 29, 2021, from 

6Villazon, L. (2021, July 2). Why does bamboo grow so fast? Retrieved July 29, 2021, from 

7(2020, April 8). Average weight and growth chart for babies, toddlers, and beyond | BabyCenter. Retrieved July 29, 2021, from

8How many trees are in the world? (2021 New data). (2020, November 18). Retrieved July 29, 2021, from

9Birch, A. (2020, May 4). Why Are Florida’s Mangroves Important? Retrieved July 29, 2021, from