2nd and 3rd Grade Science Activities : Page 7

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!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

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!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea investigates how the shape of an object affects drag.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Do different types of oil mix or stack? Find out in this science fair project idea!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science fair project idea explores how length affects the weight a bridge can hold.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Make a backbone model to explore human anatomy and life science.

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.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!