3rd - 5th Grade Life Science Activities

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea experiments with spinning color wheels and optical illusions.

Make sourdough bread...and learn some colonial history and modern science in the process!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This basketball project explores the best way to make the perfect shot every time.

Help your child learn about animal classification with this fun and delicious activity.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!