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

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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.

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

Determine which metal has the highest rate of conductivity.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Can cells be frozen? This science fair project provides information to answer this question.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

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

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

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.

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

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

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

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

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

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

This fall, bake some festive caramel apple cupcakes with your second grader and help her build her math skills while you're at it!

This science fair project idea investigates food preference of birds.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.