This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

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

Help your child learn science and math skills like sorting, sequencing, and ordering while taking a nature walk and collecting and collaging leaves.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

Science fair project that uses distillation to convert salt water into fresh water.

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.