What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project idea determines what household items are good conductors of electricity.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, students make their own rain gauge to measure rainfall.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This project determines what category of person is most likely to be ticklish.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

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

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.