Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

An home science experiment for older students that teaches about the science behind heat.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

This science experiment tests if dog saliva can really help heal wounds.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!