What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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.

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

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.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

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

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.

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.

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

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

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

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

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

This activity allows your kindergartener to translate what they observe into a beautiful poem.

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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!