This science fair project idea determines which flower lasts the longest.

Here is an activity that your kids can make for Mother's Day, a garden pot filled with edible "flowers".

The objective of this experiment is to evaluate the effects of acid rain on plants.

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

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

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This project examines how temperature affects the volume of gas in balloons.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Let your preschooler create something cute while making something delicious to eat: create bread sculptures, or shapes of bread dough!

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

This project compares different liquids and the freezing, melting and boiling points of liquids.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

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

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

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

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

This science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.