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

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

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.

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

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

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

Science fair project that cultivates slime mold and monitors the stages of its development.

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

This activity spotlights everyone's favorite reindeer, Rudolph, and preserves your child's handprints in his "antlers".

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

This science fair project idea investigates food preference of birds.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

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.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

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

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.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Determine whether the application of Febreeze will lower the bacterial count.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Solve the mystery of the unpoppable balloon in this 7th grade science experiment that demonstrates the process of heat transfer.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

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

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?