Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Explore convex and concave objects and how they reflect light.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

In this science fair project, students test how objects float and sink in liquids of different densities.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

This experiment examines if space objects become round after reaching a certain mass.

This science fair project idea compares the mass and density of objects.

Find out whether matching resonant frequencies can cause objects to shatter.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

This science fair project idea produces sounds by creating vibrations using different objects.

This project examines what types of objects burn and which burn faster and cleaner.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

With some cookie dough and ordinary household objects, let your kindergartener explore how fossil imprints are made.

Help your preschooler practice observing and experimenting with this exciting activity where they'll get to examine objects below the water's surface!

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

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

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.