In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

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.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

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

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!

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

The objective of this science project is to determine the length of time for different seeds to germinate.

This science fair project idea explores how length affects the weight a bridge can hold.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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

Uh-oh! Is that a pill sitting on the counter or a piece of candy?