Design the Perfect Bat Roost

Here is a hands-on classroom activity that turns bat roosting into an engineering challenge.

Bats

No prep

Run with a class

the weirdest bedroom in nature.

Here is a hands-on classroom activity that turns bat roosting into an engineering challenge.

Their roost must solve four bat problems:

Bat Problem	Roost Design Solution
Predators might reach me	Place the roost high off the ground
I need to take off quickly	Include an open drop zone below
I need darkness and shelter	Add a narrow, shaded interior
I need to stay warm and dry	Use weather protection and safe materials

Students should label features like:

Entrance slit
Hanging surface
Rough gripping texture
Predator protection
Rain cover
Ventilation
Drop zone for takeoff
Safe height

Then have them explain their design with one sentence:

“Our bat roost is safe because…”

Example:

“Our bat roost is safe because it is high, narrow, dark, dry, and gives bats space to drop into flight.”

This activity connects biology, engineering, habitat design, and animal behavior in one lesson.

Where it comes from

Imagine walking into your bedroom, climbing onto the ceiling, locking your feet in place, and going to sleep upside down.

Sounds uncomfortable, right? For a bat, that is just bedtime.

Read the blog post ↗ Why Do Bats Hang Upside Down? · 2026-05-13

Workspace

Run it with your class

Set up the class, count what needs counting, write down what happened, then save it and take it with you. Everything here stays in this browser until you download it.