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Third Grade Life Science Activities

Life science activities for third graders are designed for their academic level and make learning about the world around them fun with experiments and other interactive lessons.

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Third Grade

Life Science

How Old is That Tree?

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!

Do Plants Breathe?

Do plants breathe? Not exactly. They do respire though! This activity will help your kid with see that plants are producing the oxygen we need to survive.

Frogs In Winter

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

Make Spider Web Art!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Sense of Smell Activity

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

What Doesn't Belong? A Categorization Game

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Make Rose Petal Beads

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

Test Your Tongue: Are Strawberries Sweet or Sour?

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

Outdoor Adventures

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Take Science Home with Decomposition

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Osmotic Pressure Experiment

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Orange Bird Feeder

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Scent Science and Cinnamon Rolls

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Alfalfa Friends

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

Wildlife Habitat Certification

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Explore Christmas Tree Science

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Hatch Your Own Praying Mantises

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Indoor Gardening with Kitchen Waste

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

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Dinosaur Skeleton Hunt

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Discover Christmas Smells and Memories

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

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