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

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!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project idea explores the different properties & interactions of sugar molecules.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Learn with makes water molecules work with this fun and easy science activity!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.