I've been exploring my backyard as a natural laboratory and it's amazing what you can discover right outside your door. I'm looking for more backyard science activities that focus on biology and ecology.
So far I've set up a simple insect hotel, started a compost bin to study decomposition, and made a rain gauge to track precipitation. What other backyard science activities have you tried that involve observing plants, insects, or small animals?
I'm particularly interested in biology experiments simple enough to document changes over time. Things like tracking plant growth, monitoring insect populations, or studying soil composition. What experiment supplies household items work best for these kinds of observations?
Also, if you've made any science demonstration videos of your backyard findings, I'd love to see how you document your discoveries!
For backyard science activities focusing on plants, try a phenology study - track when different plants in your yard flower, fruit, lose leaves, etc. Keep a journal with dates and photos. Over years, you can see patterns and effects of climate.
Another idea: make a butterfly garden with specific host plants for caterpillars and nectar plants for adults. Document which species visit, their life cycles, population changes through seasons.
For experiment supplies household items for backyard biology, I use:
- Clear plastic containers with lids (for temporary insect observation)
- White sheets or plates (for beating branches to collect insects)
- Paint brushes (for gently moving small creatures)
- Notebook and pencil (waterproof or in plastic bag)
- Camera or phone for documentation
I love the idea of backyard science activities as long-term studies! One of my students did a fantastic project on soil biodiversity. She took soil samples from different areas (garden, lawn, under trees, etc.), mixed with water, examined under microscope (or strong magnifying glass), counted and identified organisms.
Another great backyard biology experiment: study pollination efficiency. Plant identical flowers in different locations, track which get visited by pollinators (bees, butterflies, etc.), measure fruit/seed production. Can test effects of nearby plants, colors, scents.
For science demonstration videos of backyard activities, I recommend time-lapse videos. Set up a camera to take photos daily or hourly of plant growth, decomposition, weather changes, etc. The visual transformation is amazing.
We do backyard science activities with the kids all the time! One favorite is the leaf litter safari." Take a white sheet, place under a bush or tree, shake the branches gently. All sorts of tiny creatures fall out - spiders, beetles, caterpillars. Observe them with magnifying glasses, then return them.
Another simple one: make a worm farm in a clear container. Layer soil, sand, leaves, add worms. Observe their tunneling patterns, how they mix layers, what they eat. Keep it moist and dark, feed them vegetable scraps.
For biology experiments simple enough for kids but still meaningful, try testing which colors attract most pollinators. Make simple flowers from colored paper, place sugar water in center, see which colors get visited most by bees/butterflies.
The phenology study sounds like a perfect long-term backyard science activity. I could start with just a few trees and shrubs I already have. Do you use any particular apps or templates for recording the data, or just a regular notebook?
The soil biodiversity project reminds me - has anyone tried making a Berlese funnel for extracting soil organisms? I've seen diagrams using a funnel, light bulb, and jar. The heat from the bulb drives organisms down into the jar of alcohol. Seems like a cool way to study what's living in your soil.
For experiment supplies household items for these activities, I'm thinking I need better magnification. Any recommendations for affordable but decent magnifiers or microscopes for backyard use?