Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea determines if the color of light affects the growth of plants.

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores the different properties & interactions of sugar molecules.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

The project determines which laundry detergent is best for cleaning clothes.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

This science fair project idea researches the effects of acid rain on plant growth.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.