Best Homeschool Science Experiments in the Backyard (No Fancy Equipment Needed)

If you’ve ever felt like science class requires a bunch of expensive supplies and a dedicated lab space, I want to encourage you today: your backyard is the best science classroom you could ask for.

This post contains affiliate links. I may earn a small commission at no extra cost to you.

Seriously. Some of the most wonder-filled learning happens right outside our back door — no curriculum box required. Charlotte Mason called this “the science of relations,” and I’ve found that when my kids are digging in the dirt, watching our chickens, or catching bugs in a jar, they’re learning more than any worksheet could ever teach them.

Here in Northwest Florida, we’re blessed with mild winters and a whole lot of outdoor days. We use that to our full advantage. So if you’re looking for the best homeschool science experiments you can do in your backyard, here’s what’s actually working in our home.

Why Backyard Science Works So Well

Before I get into the experiments themselves, let me just say this: backyard science isn’t a lesser version of “real” science. It IS real science.

Observation. Questions. Hypotheses. Testing. Recording. That’s the scientific method — and it happens naturally when kids are outside exploring. My elementary-age kids have learned more about ecosystems from our backyard than they ever would from a textbook chapter.

Plus, this kind of learning sticks. When my daughter watched a caterpillar form a chrysalis on our milkweed plant, she wasn’t memorizing stages of metamorphosis for a test. She was LIVING it. That’s the magic.

Simple Backyard Science Experiments We Actually Do

Bug Observation and Collection

This one is a favorite around here, especially in the warmer months (which, let’s be honest, is most of the year in Florida). We keep a bug catcher kit on our back porch, and whenever someone finds something interesting — a beetle, a caterpillar, a moth — we catch it gently, observe it up close, and then release it.

We pair this with our pocket microscope, which has been worth every penny. Looking at a dragonfly wing magnified? That’s the kind of thing that makes a kid fall in love with science.

Afterward, we sketch what we saw and jot down observations in a simple nature journal. Nothing fancy — just a record of what we noticed.

Chicken Science (Yes, Really)

If you have backyard chickens, you have a built-in biology lab. Our flock has taught my kids about:

• Anatomy — We’ve examined molted feathers under the microscope and talked about how they’re structured for flight (or in our hens’ case, short bursts of flapping chaos).
• Life cycles — We’ve hatched eggs in an incubator and watched the whole process unfold.
• Animal behavior — Pecking order is a real thing, y’all. My kids have observed it firsthand and we’ve had great conversations about instinct vs. learned behavior.
• Nutrition and health — What do chickens need to thrive? What happens when they don’t get enough calcium? Science in action.

If your kids are into chickens too, I really recommend A Kid’s Guide to Keeping Chickens. It’s written at a perfect level for elementary kids to read and take ownership.

Soil and Decomposition Studies

This one sounds boring, but kids actually love it. We dug a small hole in our backyard and buried several items: a banana peel, a piece of paper, a plastic bottle cap, and a leaf. Every few weeks, we dig it up and check on the decomposition.

Cue the gasps. “The banana is GONE!” “The plastic looks exactly the same!”

This has led to incredible conversations about ecosystems, bacteria, waste, and why we try to be intentional about what we bring into our home. Real-world learning, no textbook needed.

Bird Watching and Identification

We keep a simple bird feeder near our kitchen window, and identifying backyard visitors has become part of our daily rhythm. Florida has such a variety — cardinals, mockingbirds, blue jays, woodpeckers, and during migration season, some real surprises.

We use our Sibley Birds field guide to look up what we see, and the kids record their sightings in their nature journals. This kind of slow, patient observation is such a gift in a world that’s constantly rushing.

Weather Tracking

Florida weather is… dramatic. We get afternoon thunderstorms that roll in like clockwork in the summer, and tracking them has become a science experiment in itself.

We keep a simple weather journal where the kids record daily temperature, cloud types, and precipitation. Over time, they’ve started noticing patterns — “It’s humid and there are cumulonimbus clouds building… I bet we’ll get a storm by 3!” That’s meteorology, friends.

Plant Growth Experiments

We’ve done several variations of this:

• Growing the same seeds in different locations (full sun vs. shade)
• Testing different soil types
• Seeing what happens when plants don’t get water for a week (spoiler: Florida heat is unforgiving)

My kids have learned about photosynthesis, variables in experiments, and plant biology — all from a few seed packets and some patience.

Tips for Making Backyard Science a Habit

You don’t need a perfect setup or a detailed plan. Here’s what helps us:

1. Keep supplies accessible. Our bug catchers, magnifying glasses, nature journals, and field guides live in a basket by the back door. Low barrier = more likely to happen.

2. Follow their curiosity. If your kid is obsessed with worms right now, lean into it. The best experiments come from genuine wonder.

3. Don’t over-complicate it. You don’t need to turn every observation into a formal lesson. Sometimes we just watch. Sometimes we sketch. Sometimes we look something up later. It all counts.

4. Get outside even when it’s not perfect. Some of our best science days have been overcast or right after a rain. A good pair of rain boots makes all the difference.

The Real Goal Here

I want my kids to grow up knowing how to observe the world carefully. To ask questions. To notice things most people walk right past. That’s what backyard science really teaches — and it’s a skill that will serve them far beyond any standardized test.

This is the 1990s childhood I’m trying to give them. Less screen time, more dirt under their fingernails. More wonder. More slow discovery.

So if you’re feeling pressure to buy a fancy curriculum or set up elaborate experiments, take a breath. Walk outside with your kids. Watch the clouds. Dig in the dirt. Catch a bug.

That’s science. And it’s more than enough.

—

What’s your favorite backyard science activity? I’d love to hear what’s working in your homeschool — drop a comment or send me a message!