Introduce the idea of measuring weight to your preschooler or kindergartener by making a fun and easy-to-use bungee scale to weigh household objects.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

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

Practice measurement using centimeters in this fun math race designed for your second grade student!

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

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

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

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

Do you think heat can affect a plant's growth rate?

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This project explores whether music affects the growth and health of plants.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.