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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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

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

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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!

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

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.

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.

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!

Will increasing the amount of salt in water effect how slow or fast the water freezes?

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea investigates the difference in reaction times between boys and girls.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Help your child make a beautiful homemade sandcastle that will last!

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Here's a pressed leaf card project that puts science and writing together for your second grader.

Use pepper and soap to discover some fun facts about the properties of water.

Help your child celebrate the summer and the sun by making a sandy seascape.

Plants and light seem to be good buddies, but how far does the friendship really go?

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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