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Life Cycle Earth Day LEGO Challenge- Hands-on STEM!

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This Earth Day, learn about the life cycle of a tree using LEGO! This earth Day LEGO challenge is the perfect activity to go along with a conservation Earth Day lesson. You can also use this as an Arbor Day LEGO activity!

Easy LEGO creations are a super fun way to bring STEM activities for kids to life and provide hours of creativity and fun!

An Earth Day LEGO challenge making a LEGO tree life cycle is the perfect activity to go along with any Earth Day lesson!

Tree Life Cycle Earth Day LEGO Challenge

This Earth Day, challenge kids to create a tree’s life cycle out of LEGO!

This Earth Day, challenge kids to create a tree's life cycle out of LEGO!

Supplies for the Tree Life Cycle Earth Day Activity

You’ll need a set of LEGO that has trees in it. This treehouse set will have everything you need.

If you don’t have tree pieces, you can also build trees from a regular LEGO brick set. This is the LEGO set that most of our other builds are made with.

You’ll also want some 1 bricks to make your fruit. We used red for apples.

We also used a green base plate to stabilize our LEGO creations.

lego challenge cards

LEGO Bricks for the Tree Life Cycle

These are the exact bricks that we used.

supplies to make a tree life cycle from lego

Tree Life Cycle Earth Day Lesson

Right now in the Jarring Science club, we’re learning about life cycles, so adding a tree to the list made perfect sense!

All living things follow a pattern of birth, growth, reproduction, and death, including apple trees.

lego earth day stem challenge

You’ll make the first three stages of a tree’s life cycle in this LEGO set. You can also add death in there if you want, but I usually don’t like to dwell on that one too much.

We are representing a seed, a sprout, a young tree, and a fruit-bearing apple tree in our tree life cycle set.

Explain to the kids how trees are important for the health of the world and what would happen if too many trees are taken away!

An Earth Day LEGO challenge making a LEGO tree life cycle is the perfect activity to go along with any Earth Day lesson!

Keep reading to learn how to build your own tree life cycle for Earth Day!

Earth Day STEM Challenge Directions

Follow the pictures below to see how we built our set. Don’t get too caught up in replicating it exactly, the most important thing is that the kids create a model that looks like a tree’s life cycle to them. It doesn’t have to look exactly like ours.

lego tree seed

First, use a small block as a seed. We had a brown flower piece from some set, but a brown 1 block would also work.

For the sprout, we found a little green decorative bush from a set that we own. If you don’t have something similar, you can put a leaf on top of a 2X2 brown brick.

lego tree sprout

For the young tree, we stacked three brown 2X2 bricks and put two leaves on top.

lego tree sapling

For the mature tree, we used 8 brown castle tower pieces and some supporting brown pieces. We also used 2 brown arches to make a branch. Some leaves completed the tree, then we used red 1 bricks to represent apples.

how to build a lego tree

We had a lot of fun building our LEGO tree life cycle!

Watch this video if you get confused!

I’d love to see your version of this Earth Day STEM project if you make it! Share your creations using #steamsational on social media so we can see them!

lego challenge cards

More Earth Day Activities

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Super Fun Earth Science Experiments for the Classroom

How to Make Paper without a Screen at Home!

Earth Day Build a Planet Challenge

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