Life Science

NEW! Curriculum Units combine videos and experiments into an organized curriculum.

Food Webs: Follow energy through a living system as it passes from one organism to the next.
Science With a Microscope: Learn the basics and explore the micro-world.

Select a topic and then scroll down to see the resources that have information about that topic.

Yeast and Sugar, Part 1 An experiment with cellular respiration
Measuring Photosynthesis A simple way to experiment with photosynthesis
Extracting DNA Extract some of your own DNA
Finding Fat in Foods Testing foods to see if they contain fats.
Imagining Geologic Time How can you imagine millions of years?
Pumpkin Guts What's inside your Halloween pumpkin?
Microscopes - Making a Hay Infusion Grow a culture of microorganisms
Microscopes - Making a Wet Mount Another way to prepare specimens
Microscopes - Making a Dry Mount The simplest way to look at things with a microscope.
Introduction to the Microscope An introduction to the microscope
Attracting Wildlife How to attract a variety of wildlife to your yard.
Our New Home Our new home in Utah.
Calling a Woodpecker A simple technique for attracting woodpeckers.
Bendable Bones - Updated A classic investigation into the chemistry of bones.
Reading a Skeleton A bit of forensic osteology can help you read the bones.
Food Chain: Scavengers and Decomposers Meet the "clean-up crew" of the Food Web
Bird Bones Dissect a bird to compare its skeleton with ours.
Foodchain: Secondary Consumers Take the next step up the foodchain to take a look at predators.
Foodchain: Primary Consumers Following the Producers video, take the next step up the food chain, and learn about herbivores.
Laser Projection Microscope Turn a $5 laser pointer into a projection microscope!
Orange Flash Can you make flames shoot out of an orange? Of course you can!
Heartless Plants How do plants move water and food without a heart for a pump?
Is That a Color Photo? Trick your brain into seeing color in a black and white photograph.
Selective Smelling How long can you smell something before the scent vanishes?
Measuring in Feet Instead of measuring with a ruler, try measuring with your foot.
Reaction Time How quick are you?
Hear the Ocean? Why do you seem to hear the ocean inside a sea shell?
Got the Red Green Blues Does your TV really only have three colors?
Foot Circles Try this fun experiment to trick your brain.
Producers Learn about the lifeforms that make up the base of the foodchain.
Emergency Glasses Learn how to make quick, easy, emergency eyeglasses.
A Walk in the Park You don't have to go on safari to see some amazing wild life.
When Sugar Isn't Sweet How can sugar not taste sweet?
Why We Sweat Why do people sweat?
Fingerprints Learn an easy technique for collecting fingerprints.
Seed Search How do plants spread their seeds to new areas?
Illusions Learn some of the science behind optical illusions.
A Color You Can't See Use your cell phone to see a color you can't see
Feathers For such simple things, feathers have an amazing amount of science built in.
Spoon Bells Use simple science to make spoons sound like church bells.
Koffka Ring Illusion An easy illusion to trick your brain.
Two Coins Instant science: An illusion to make two coins look like three.
Osmosis Explore a chemical process that keeps your cells going.
Just a Suggestion Can you resist scratching your nose?
The Stroop Effect How well does your brain work with two bits of information at the same time
Iron Cereal What do they put into breakfast cereal to give you your daily requirement of iron?
Kneesy, Earsy, Nosey How good are you at moving across the midline?
Taking a Marshmallow Apart Take a marshmallow apart to see what it is made of.
Stable Image Learn how your brain stabilizes images.
Science Fair Panic, part 2 This time we talk about research and forming a hypothesis.
White Balance Have you ever taken a photo that turned out very yellow or with a blue tint? Now you will know why.
The Waterfall Effect Try this natural, optical illusion, which tricks your eyes and brain with motion instead of color.
Nature Watching Are you a bird watcher or a bird spotter?
Hunting With an Umbrella What strange creatures would you hunt with an umbrella?
Curves Illusion Which of these curved pieces of paper is longer?
Orange Slices A neat trick for predicting the number of slices in an orange before you slice it.
Written Experiments
Food Web Tag A fun game that simulates the basics of food webs.
More Cold Tomatoes
Boning up on Turkeys
Brain Freeze
Breathing Hot and Cold
Broccoli Science
Don't Push
Cat Wiggles Why do cats often wiggle their back legs just before they pounce on their prey?
Pepper Hot
Talking to Frogs
The Place You Can't See
Where Plants Grow
Heart Watching
The Knuckle Trick A fun science trick to make you think your arm is getting shorter.
Bird Behavior Are you a bird watcher or a bird spotter?
Hold Your Nose Can you tell what flavor candy you are eating?
Spider Spotting
Thoughts on Trees
Spore Prints Study fungi by making spore prints
Scavengers and Decomposers Meet the "clean-up crew" of the Food Web
Taking a Marshmallow Apart
Calories: Measuring the Energy
What is a Food Web?
Primary Consumers Take the next step up the food chain.
Secondary Consumers Continue up the food chain to Secondary Consumers
Cat Twisting How do cats manage to land on their feet?
How Does a Butterfly Fly? Explore the strange way butterflies flap their wings.
Knuckle Cracking
Have a Heart
One Eye or Two
Building a Nest
Feeling a Point (or two)
Through Rose Colored Glasses
Cat Lapping
Hay Infusion
Eye Shine Why do some animals eyes glow when you shine a light on them?
Ripe Fruit
Shedding Your Skin
Smell and Humidity
Make Your Own Stereogram
Temperature and Taste
A Real Tuning Fork
Bouncing Remotes
Feeling Sound
Flickering Fingers
Making Tracks
No Broken Bones
Squeaky Balloon
The Power of Lemons
Monocots and Dicots
Punnett Squares
Ear Genes
Egg Bubbles
Bean Power
Mirror Writing
Where am I?
Thoughts on Trees
Why Paper Burns
Fooling Your Clock
Flexing Small Muscles
Finger Feedback
Feeling the Pressure
Seeing UFOs?
Getting to the Root
Spider Spotting
Making Your Face Vanish
Looking into Your Eyes
Reversing Flag
Five Cents
Taste and Smell
Shadow Colors
Seeing Spots
Safe Insecticide
Scratch Science
A Pretend Telescope
Hearing Directions
Floating Finger
Bread Bubbles
Arm Raising
How Many Coins?
Cold Tomatoes
Tummy Rumbles
Lunar Illusion
Smelling in Stereo
Potato Water
The Science of Spit
Smell the Flowers
Contagious Yawns
Square in the Grass
Insect Hunting
The Hole in Your Hand
3D Photos Make and view your own 3D photos.
3D Chalk
Pinecone Weather
Science Photos
Creating a Sprout GuideLearning to recognize tiny plants.
Science Photo of the Day #976Why are these animals sometimes confusing to tourists visiting from other countries?
Science Photo of the Day #974Why is the bark on this plant peeling?
Science Photo of the Day #971Goats have unusual eyes with a wide, rectangular pupil. What other animals have that kind of pupil?
Science Photo of the Day #969Over the past few days honeybees have invaded our bird feeders. Why?
Science Photo of the Day #968Monarchs are mimics too. What do they mimic?
Science Photo of the Day #967What city is named after this red spot?
Science Photo of the Day #966What is special about the way this plant obtains nutrients?
science Photo of the Day #965What is this?
science Photo of the Day #964What is this strange insect?
science Photo of the Day #963Another interesting thing about sagebrush is that they communicate with each other. How do they do that?
science Photo of the Day #962There are very few animals that eat this plant. Why?
Science Photo of the Day #958What causes vertigo?
Science Photo of the Day #956Why are bird droppings usually white?
Science Photo of the Day #955What is special about the way this plant reproduces?
Science Photo of the Day #953How closely related are modern raptors to Velociraptors, the dinosaurs shown in the Jurassic Park movies?
Science Photo of the Day #951For the average bird, what percent of its weight is due to its feathers?
Science Photo of the Day #950What plant forms these round structures, and what are they?
Who Evolved on First?Who Evolved on First?
Science Photo of the Day #949How does a mustard plant survive subzero temperatures and snow?