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Challenge your preschooler to a game of shape match-up--an entertaining way to boost her observational ability.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This project concerns activity happening millions of miles away, on the sun.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

Examine the connection between temperature and chemiluminescence.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Test whether cutting up meats will make it cook faster than just cooking it whole.

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

Dig up some dinos while promoting curiosity and sensory skills in this hands-on activity that will have your child searching for prehistoric treasure!

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.