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

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.

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

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

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?

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

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

Brighten up your home with this fun activity! Make a summer sun print and teach your child the art of easy print making.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

How powerful is the reaction between baking soda and vinegar? Find out here!

Wreath ornaments decorate your Christmas tree and act as a fun sensory craft for preschoolers. Make wreath ornaments with your child this holiday season.