Outdoor Learning and STEM  

Nature Crafts

Build  Bug Hotel

You may not like bugs and beasties, but they are an essential element of any wild space.  Insects are very important because they help nature (and us!) in many ways:
  1. Pollination – Bees, butterflies, and others carry pollen so plants, fruits, and vegetables can grow.

  2. Food chain – Many animals (like birds, frogs, and fish) eat insects, so they’re a key food source.

  3. Cleaning up – Some insects recycle waste by breaking down dead plants and animals.

  4. Soil health – Insects like ants and beetles dig and mix the soil, making it richer for plants.

  5. Human uses – We get honey, silk, and even some medicines thanks to insects.

Without insects, the world’s plants, animals, and even people would have a very hard time surviving.

Click the image to the left to see how to make a simple bug hotel.
Click the image on the left to learn about other designs of bug hotels.

Making your Bug Hotel

You will need ... 

  • 1 empty large plastic bottle

  • Pair of scissors

  • String

  • sticks/twigs

  • straw

  • pine cones

  • lichen/moss

  • seed heads

Step 1 - Cut the top and bottom off of the bottle so that you are left with a tube.

Step 2 - Pierce  hole half way along the tube , and another hole directly opposite and pass a length of string through both holes.  (Alternatively, 'loop' the string through the bottle as shown in the image.)

Step 3 - Tie a twig or short stick to one end of the string, and pull the string back through until the twig is tight up against the bottom of the tube.   Leave enough string at the other 'loose' end to be able to tie the bug hotel to a branch or something similar.

Step 4 - Fill the bottle with the materials you have gathered so that there are gaps, nooks and crannies in amongst the tightly packed materials for the bugs to live in.

Image : https://www.youtube.com/@redtedart

Variations to the Bug Hotel

Did you know that of all the animal species on earth, roughly 9 out of 10 of them are insects !  There are some scary ones that can bite, sting or spread germs, but the vast majority of insects are harmless.  

In our Bug hotels, we could have used a large tin can (with both ends removed) rather than a plastic bottle. The materials, too, could be pretty much anything you fancied ... dried leaves 'wrapped' in twigs, for example, but avoid using things (like wool or cloth) that might get wet and NOT dry out.

Your bug hotel, then, could be home to literally hundreds of different species of insects.  The bigger your bug hotel, the more insects you'll be providing a home for !  The image below shows a bug hotel made form pallets, clay pipes, bricks, logs with holes drilled in them, straw, and, on top, a 'mini garden' !

"Bug hotel at Easton Lodge Gardens, Little Easton, Essex, England" by Acabashi is licensed under CC BY-SA 4.0.


You can buy bug hotels in shops, or make your own.  The image below is one you can buy in many garden centres.  The canes are hollow and provide excellent spaces for 'lone bees'.  (Image : Hefin Owen - flickr)



Points to ponder ...

Think about the hazards that might be present when working through this task ...
  • Working with scissors

  • Splinters from the wood

  • Cuts from the wood

  • Pokes in the eye from stuffing the materials into the tubes.

It might be worth thinking about safety goggles, and being ready to help children who might find it difficult to work with the scissors safely.  It may be that you have to support them a this point in the project, or a least be ready to observe and guide appropriately.  Remember, though, this is a learning opportunity for them.  As much as possible, let them do things themselves.  How else, after all, WILL they develop these skills ?





How does this activity relate to S.T.E.M ?

Science.
  • Entomology (Insect Science) - Identifying and classifying different insects (bees, ladybugs, beetles, spiders).  Learning about insect life cycles (egg → larva → pupa → adult).   Observing insect behaviour in their new shelter.
  • Ecology and Biodiversity - Studying the roles of insects in ecosystems (pollination, decomposition, pest control).  How different species need different habitats (hollow stems, bark, soil, leaves).   The importance of biodiversity for a healthy ecosystem.
  • Environmental Science - Understanding the role of insects in nutrient cycles (decomposers breaking down organic matter).  Linking bug hotels to sustainability and conservation, e.g., helping pollinators like solitary bees whose habitats are disappearing.   Exploring climate change impacts on insect populations.
  • Microclimates - Considering microclimates inside the bug hotel (light, temperature, moisture).
Engineering
  • Designing the structure: how to build stable, weather-resistant shelters.
  • Testing which materials (wood, bamboo, straw, bricks) provide better insulation or drainage.
  • Working with hand tools
Maths
  • Basic Ratios - 9 out of 10 animals are insects, so how many insects would there be if there were 200 animals ?