Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Make homemade lemonade in a baggie with your preschooler with this fun and easy recipe.

This science fair project idea explores whether dogs do look like their owners.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project investigates how temperature of a room affects the burn rate of a candle.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This science fair project idea examines the reason boats are shaped and engineered.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.