This project compares the strength of one, two, and three-ply toilet paper.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!