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

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

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

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

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!

Start your toy engines -- this is going to be a fast and friction-filled race!

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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