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Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Examine the effect of pressure on carbonation in soda.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Science fair project that explores the natural process of limestone formation.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Learn how different types of soil affect how animal tracks form in this experiment!

This science fair project idea explores the different properties of matter.

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.

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!