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.

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

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.

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

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.

This science project idea examines the effect of microwaving on various objects.

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.

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 science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.