Have you ever looked up at a tree and wondered how tall it is? I've got a fun way you can find out without having to climb to the top with a tape measure!
How can you measure how tall a tree is?
We have an easy way to find out!
Why does it work?
This method of measuring the height of a tree is only an estimate but uses trigonometry. If you look at the top of a tree at a 45-degree angle, then the height of the tree (h) is the same as the distance that you are from the tree.
More ideas for science in the forest.
Did you know you can make a weather station using pinecones?
Or how about collecting pinecones and leaves to make estimating jars?
Do you know the three different ways of working out how old a tree is?
A homemade wormery is always a fun outdoor activity, too and great for observing over a period of time.
We LOVE these cardboard nature hearts from learning through play!
You might also like my other easy science experiments for kids! I've got STEM Challenges, science fair project ideas and lots more exciting science experiments for kids of all ages.
Last Updated on May 10, 2023 by Emma Vanstone
Liz Burton says
That is GENIUS!!! I have to try this out with Ruby. x
JDaniel4's Mom says
I have never heard this before. Cool!
Mary says
I love this!!!! I've never heard of it either but can't wait to try it with my kids!
maggy, red ted art says
(Thank you for sharing on Kids Get Crafty!!)
Maggy
ScienceSparks says
We loved it!
HELEN says
absolute genius! you are a minefield of information! x
ScienceSparks says
Ha ha, thanks!
Isil says
I love this.Thanks for sharing.
ScienceSparks says
Thank you.
maggy, red ted art says
Well I never!! Once you explained it, it all made sense, but before it seemed like MAGIC! YAY!
ScienceSparks says
Its funny isn't it?
Regina @ Chalk In My Pocket says
Sophmore year trig just came flooding back to me upon seeing the illustration! I LOVE this idea and it's timing is perfect as my daughter has been asking how tall some of our hundred year old poplar tulips are. They tower over our house and I'm estimating they're at least 120 feet tall. So would this method work on an incline or would that skew the right angle?
Ann says
I SO love this post!!! Love the idea of introducing my young kids to something they otherwise won't get until high school.